Original sentence: Beyond the Nokia 6263, T-Mobile officially sells the Nokia 3555, Samsung T639, HTC MyTouch 3G,T819, Samsung Behold, Sony Ericsson TM506, Sidekick LX 2009 and their flagship 3G device, the T-Mobile G1 which all support the WCDMA 1700 MHz and 2100 MHz frequencies
Edited sentence: Beyond the Nokia 6263, T-Mobile officially sells the Nokia 3555, Samsung T639, HTC Magic,T819, Samsung Behold, Sony Ericsson TM506, Sidekick LX 2009 and their flagship 3G device, the T-Mobile G1 which all support the WCDMA 1700 MHz and 2100 MHz frequencies