My guess is "Sharepoint that doesn't suck". Facebook is all about the flow of information in a personal setting through the use of your social graph. Apply th

My guess is "Sharepoint that doesn't suck". Facebook is all about the flow of information in a personal setting through the use of your social graph. Apply the same thinking to business and collaboration. Sharepoint is microsoft's fasting growing product ever (more than office or windows). It's also a 10 figure revenue stream with 100 million+ users. Like most MSFT products that sell well, it absolutely sucks balls like you could not believe. I spent 2.5 years working on this problem, and it's a pretty big one. I really hope these guys tackle it and succeed to their fullest extent.