The 3GS has reflective silver text on the reverse side which matches the silver Apple logo , replacing the 3G 's grey text .
The iPhone 3GS retains the design of the 3G , with a glossy plastic back with tapered edges and metal buttons .
The iPhone 3GS has reflective silver text on the reverse side which matches the silver Apple logo , replacing the 3G 's grey text .
The iPhone 3GS retains the design of the 3G , with a glossy plastic back with tapered edges and metal buttons .