This looks absolutely brilliant! I'll check it out tomorrow and see how well I can pick it apart ;)
Would you want us to submit updates to it directly or should we talk to you first?
First thoughts from the screencast: Totally awesome! Where can I get that keystroke showing thing? The drawer should open from the bottom. The logs should be stored in the standard logs folder ~/Library/Logs Your screencast is a bit washed out and everything seems very white. The layout of the window could use a bit of cleanup. (I'd be happy to submit alternate layout ideas) 'user defined' Installation Target should default to the ~/Downloads folder or the Desktop
Have you seen the Firefox 3 add-on window? I think that has a wonderful UI, but maybe not ideal for this. Thoughts?
(assuming it actually works ;) This is a HUGE step forward for the TextMate community!