It does sound very impressive...but also very expensive...
Actually, the main reason I won't try the free trial is that I have completely run out of memory on my Blackberry. Webmessenger is a memory hog (close to 1MB, I think), and my own little slide show application is a memory PIG (over 1MB for around 25 pictures on my little boy running around the house). Every now and then ALT-CAP-H shows available memory of 0. I wish the memory was expandable!
If someone tests this application out, please post your comments. Is it possible to use IM via I'm in Touch? Could it replace WebMessenger?