I would love to give more feedback, but since all I've seen is a short screencast, I can only say so much.
If you have xcode and use SVN to get bundles, you can easily install the changes by building and installing the Dialog Plugin (the changes were commited 5 days ago)
Also, aren't we all expecting some kind of code-completion framework in TM2?
Not sure what you have heard, but the impression I have been given is that there will be extended snippet syntax for multiple choice tab-placeholders. Even if Allan has something more powerful in addition to this, TM2 is still several months away.
Joachim MÃ¥rtensson