docs: function( key /* or array */, callback ) {
                  var me = this;
                  if ( this.isArray( key ) ) {
                      var values = [];
                      for ( var i = 0, il = key.length; i < il; i++ ) {
                          me.get( key[i], function( result ) {
                              if ( result ) values.push( result );
                              if ( values.length === il && callback ) {
                                  me.lambda( callback ).call( me, values );
                              }
                          });
                      }
                  } else {
                      return this.fn('init', callback).call(this, Titanium.App.Properties.getObject(key));
                  }
                  return this;
              }