Yes, the idea seems to be that they'll gather and monetize the data though I don't think that's sustainable. No one has to make money on this, they could fail while blowing all of their VC money.

All of these widget companies seem like a bit of a scam to me. Do you really need $36M to create a bunch of crappy widgets? I've never even seen a widget from RockYou/Slide/Widgetbox/Clearspring on any of the sites I visit.