[fuuup]

I haven't noticed a difference in speed... except for the keyboard. It seems to operate a bit slower (or is less responsive) than the stock rom. It also feels less accurate.

Battery life is about the same.

Pinch to zoom in the browser also doesn't seem as smooth as it was on the stock rom. When I attempt to use the pinch to zoom function, it'll zoom, but then snap back to the original size. It takes about three tries to get it to actually stick. I'm not sure if this is due to the base being an unfinished leak, something that was tweaked, or if this is just how the browser will work in 2.1. Guess we'll have to wait for the sprint release to find out.

Other than that, no serious problems. From my experience, if you use your keyboard and the stock browser a lot, and your phone seems to do the job as is, I wouldn't recommend upgrading. But it's cool for anyone who wants to see what we can look forward to when the 2.1 update comes around.