T-Mobile announced the G1 yesterday.
I've linked to lots of comments in my More Shared Reader (which always appears in the links to the right here).
I like having a QWERTY keyboard. That's the main reason I have a Blackberry now instead of an iPhone (since I had the choice).
The openness of Android is an important key. The expectation is that lots of amazing software will be written by people all over, applications and extentions to the OS itself.
However, it did have the feel of an iPhone want-to-be sort of like Windows was like a Mac-OS want-to-be in years gone by. What's missing is something that shows how the G1 exceeds the capabilities of the iPhone.
Of course there's room in the world for more than one kind of hand-held device, and having at least two big ones is a good thing.
Photo from Endgadget.