iPad Widgets

I don't really like Android much - it just doesn't appeal - but I quite like the idea of smart desktop "widgets" on my iPad and I think i might be tempted to buy such things, if they existed. So what features might a widget system need to be successful?

Firstly, it has to just work. No messing around, no hassle, just install, activate and use and, when you're done, delete. Secondly, the widgets have to consume negligible resources, hibernating really quickly when a full-screen application is running or the iPad is in standby. Thirdly, they need to be cheap and, finally, they should be dynamic and, ideally, able to interact with each other (if only to request greater screen real-estate when they have something to communicate).

None of this is outside the realms of the possible; maybe widgets will appear in iOS 5.0 with a modern notification system. Maybe.