Looks nice. Downloading now.
EDIT: Just tried it out for a while. Verdict: It's great!
Once you turn off the Chinese language, the text prediction is great, and the buttons are quick and responsive. I like the option to have different layouts for portrait vs. landscape (even though I just use QWERTY for both). The edit button is top center, and very handy, since I came from a G1 and the Vibrant has no trackball/d-pad to edit words. One note though, the delete button in Edit deletes the next character, not the previous. Not a huge deal, since the backspace on the keyboard still deletes the previous character and you could just select what you need to delete in the Edit screen, just a weird change. If you don't know what I mean, try it out yourself, it's worth a try at least