It's what Google does, man. Look at what they're doing with Google Calendar, Google Docs, etc. Now the Google phone is coming and it's going to have seamless integration with all that (presumably it'll have seamless integration with YouTube too). Same with Google Maps. They buy the Keyhole Earth software thing, change it from super expensive to super free, overlay GIS maps of streets, etc., and it's all free. Everybody uses it, and pretty soon commercial applications just grow organically out of it and they start raking in shitloads of money. Often I look at the way things work out and think . . . jesus, did they plan for that to happen or do they just get lucky? By the way, Google bought Sketchup a couple years ago, and at first I thought the acquisition made no sense at all. But I've decided that I think they plan to start modeling the world in 3D, which they will then add to Google Maps. Every building, etc.