All we currently know about the phone is its general shape (via an outline posted on an official teaser page), and the fact that it will support HSPA+, making it the first T-Mobile's 4G (or 3.5G, depending on how you define 4G mobile communication) phone.
"The T-Mobile G2 will deliver tight integration with Google services and break new ground as the first smartphone designed to run at 4G speeds on our new HSPA+ network," the teaser site says. Without giving a precise time frame for the launch, T-Mobile promises it will share more details about the G2 "in the coming weeks," as well as "offer exclusive first access to current T-Mobile customers."
We doubt the G2 will generate as much interest as its predecessor, as powerful Android phones coming from HTC and others aren't that rare nowadays. Still, it's exciting news for T-Mobile users interested in a high-end, HSPA+-capable smartphone.