We really could have guessed as much at this point, but T-Mobile’s Senior Vice President of Engineering Neville Ray has put it on the record that G1 followups are on the way in 2009:

As the year progresses there will be a significant number of HSPA-capable smart phones. We will be launching more G series phones and other products.

We’ve heard from at least one source at HTC that the G-series isn’t necessarily an HTC only gig – if more than one does indeed hit the shelves in 2009, we’d expect at least one of them to be outside of HTC’s doing.

[Via AndroidGuys]