Most of that explains why you shouldn't buy that version of android phone, namely that specific HTC model.
The only argument there that really pertains to android, is exchange push support. Other than that, the os/most available software is independent of hardware it's being placed in.
And is multitouch REALLY so necessary on a small device I'd want to prod with my thumb?
Just differentiate between google's android, and the G1. Android stands to become a common platform which can be quite the blessing for the phone industry.