The G1 has built-in support for T-Mobile's 3G (HSDPA) and EDGE network as well as Wi-Fi. The G1 can transfer between 3G and accessible Wi-Fi networks, including T-Mobile HotSpot locations.
The device also features a built in instant messaging client with support for Google Talk, AOL, Windows Live Messenger and Yahoo Messenger. It also supports advanced text messaging features to flag, delete or move groups of messages and keep track of group conversations through threaded text messaging.
