 I'm here at DEF CON 20. We're looking at the 2012 Ninja badge. If you're lucky enough to get one of 600 of these, you're given one of these cards. Go to a booth. They will ask for your handle, then you choose your telephone number. I've been informed that it's a European market HTC One V. Got a SIM card in there. This is their custom ROM. We've got a dialer, contacts, TDD service. In a DEF CON past, they took a door from a telecom van and they brought it back this year, but with an entire van. And the van has been outfitted with what I can only describe as a local cellular tower. Effectively what we've done as a team is built a talk-code and a mobile device from the ground up. You know, Android is an incredibly sophisticated operating system and what's so fantastic about it is its open nature, how customizable it is. We thought to ourselves, you know, why not take this open customizable experience and actually create limitations and focus on a more social interaction, you know, around the conference. So you'll see here the theme of the operating system is focused on the yellow pages and its primary functionality is within the dialer, for example, or contacts or the messaging service. And what we've also tried to do is not only weave into it a social aspect, but a way that discovery can happen where people who they don't know, if they don't know one another, can start communicating right away. So for example, we've built a network addressing function so anyone who joins the network actually, you can see everyone else, they're automatically added into the contact list. And what we've been observing in terms of behavior is, you know, random people are just having conversations talking about really, really interesting things relevant to the conference. Another really interesting example of what we've built is we're leveraging a really interesting technology called all-join technology. Which runs over Wi-Fi. It's something Qualcomm's created and allows us to do peer-to-peer communications. We actually created a vending application that allows you to dynamically provision sodas or beers out of a vending machine simply by clicking on this application. As much as we want to limit the experience, we also want to enable people to hack the experience. We've actually built the Android IDE into the actual device experience so you can actually generate your own applications on the fly within the device or ADB into the device itself and customize and hack it from the ground up. To build this we actually used a guy named Barcode and some friends of his, Bob and Colleen. These guys are professional fabricators. They've worked on some really awesome projects for movies and stuff like that. In the back we have a rack inside here. We've got some servers and up here we have radio gear. This is an EdisResearch USRP Universal radio peripheral. Software radio peripheral. And some other stuff that's feeding into a duplexer that's going to the antenna on the roof. And this forms the entirety of our part of the network. The network itself is completely self-contained. You can't call out to the outside world. There's no data service. It is really just voice and SMS. We've basically been planning this for a year since last EFCON. It's when we had the first sit-down meeting. It's all because of our sponsors and the help we've had from all the people who contributed to this that we're able to actually do this and give these phones away and have them share this experience of being on a cute little phone network.
 I'm here at DEF CON 20. We're looking at the 2012 Ninja badge. If you're lucky
 enough to get one of 600 of these, you're given one of these cards. Go to a booth.
 They will ask for your handle, then you choose your telephone number. I've been
 informed that it's a European market HTC One V. Got a SIM card in there. This is
 their custom ROM. We've got a dialer, contacts, TDD service. In a DEF CON past,
 they took a door from a telecom van and they brought it back this year, but with
 an entire van. And the van has been outfitted with what I can only describe
 as a local cellular tower. Effectively what we've done as a team is built a
 talk-code and a mobile device from the ground up. You know, Android is an
 incredibly sophisticated operating system and what's so fantastic about it
 is its open nature, how customizable it is. We thought to ourselves, you know, why
 not take this open customizable experience and actually create
 limitations and focus on a more social interaction, you know, around the
 conference. So you'll see here the theme of the operating system is focused on
 the yellow pages and its primary functionality is within the dialer, for
 example, or contacts or the messaging service. And what we've also tried to do
 is not only weave into it a social aspect, but a way that discovery can
 happen where people who they don't know, if they don't know one another, can start
 communicating right away. So for example, we've built a network addressing
 function so anyone who joins the network actually, you can see everyone else,
 they're automatically added into the contact list. And what we've been
 observing in terms of behavior is, you know, random people are just having
 conversations talking about really, really interesting things relevant to
 the conference. Another really interesting example of what we've built
 is we're leveraging a really interesting technology called all-join technology.
 Which runs over Wi-Fi. It's something Qualcomm's created and allows us to do
 peer-to-peer communications. We actually created a vending application that
 allows you to dynamically provision sodas or beers out of a vending machine
 simply by clicking on this application. As much as we want to limit the
 experience, we also want to enable people to hack the experience. We've actually
 built the Android IDE into the actual device experience so you can actually
 generate your own applications on the fly within the device or ADB into the
 device itself and customize and hack it from the ground up. To build this we
 actually used a guy named Barcode and some friends of his, Bob and Colleen.
 These guys are professional fabricators. They've worked on some really
 awesome projects for movies and stuff like that. In the back we have a rack
 inside here. We've got some servers and up here we have radio gear. This is an
 EdisResearch USRP Universal radio peripheral. Software radio peripheral.
 And some other stuff that's feeding into a duplexer that's going to the antenna
 on the roof. And this forms the entirety of our part of the network.
 The network itself is completely self-contained. You can't call out to the
 outside world. There's no data service. It is really just voice and SMS. We've
 basically been planning this for a year since last EFCON. It's when we had the
 first sit-down meeting. It's all because of our sponsors and the help we've had
 from all the people who contributed to this that we're able to actually do this
 and give these phones away and have them share this experience of being on a cute
 little phone network.