Wrong quest, sorry Hugh.
It's the small ideas that will transform big companies.
RSS? It was a small idea five years ago. Except in Dave Winer's mind. Today it's in Sharepoint, Outlook, IE7, among other places.
Blogging? Bill Gates hadn't heard the word five years ago. Today he owns one of the most popular blog services and has 3,000 of the most-respected corporate bloggers.
Podcasting? Videochatting? Hey, Microsoft still hasn't gotten that small idea, but another big company has (that company is Apple, check out the ad that Maryam is standing next to).
Want a big idea for Microsoft? Go to BarCamp this weekend. Oh, wait, that's being held in Microsoft's SF offices. I wonder if Microsoft will get the small ideas that are gonna be discussed on its own turf? Calling Ray Ozzie, calling Ray Ozzie!