Whiteboard vs. Excel - Part 2

I have posted before about the subject, and there was a strong hold on both sides (for and against). Yesterday I run into a blog that mentioned a software called Mingle 2.0 - obviously not the first version according to the name, but I have never heard of it before, so it might be a naming game (all the Web 2.0 thing) - who knows? And probably someone knows. If you a successful survivor of the software or have  a few words to drop, leave your comment after the beep.

Beeeeep.