T-Mobile this morning announced the G2, the follow-up to the very first Android smartphone, the G1. And the sequel will be the first to sport T-Mobile's HSPA+ data speeds (which it's touting as being 4G). T-Mo's still being a bit of a tease, not actually showing us the phone yet (our guess is still the HTC Vision/Blaze slider), but it promises to share more details n the coming weeks, and that there will be "exclusive first access to current T-Mobile customers."
As to when we'll see the G2? We've got that leaked roadmap showing the "Vanguard" in September, and a previous story saying the first HSPA+ phone was due in September, so put two and two together and there you go. [T-Mobile]