Does anyone else think this is a really messy well to use other apps on the iPhone? Go into Safari, bookmark the app, use it in a browser window...they don't really feel a part of the iPhone, just bolted on top.
There are clearly spaces for other "widgets" on the Home screen...maybe Apple will allow certain approved/tested apps (as well as their own, like maybe iChat when/if it comes in a software update) to be a "full" widget and appear on the Home screen - for instance iChat, which vibrates when you get a message, puts a little icon in the top menubar when you have an unread message or a contact comes online...working much more like a proper app/widget. Also, you should be able to get rid of the current widgets you don't like/use (I'd never use stocks, for instance), and replace them with ones you do.
Maybe this web thing is just meant for smaller apps and as a way for everyone to contribute to the iPhone and give it much more perceived flexibility, but Apple will still stick to their original statement of closely monitoring and working with 3rd-party developers, and allowing a few "official" apps to be used/bought(?) as full widgets (iChat/MSN, GPS access in Maps, etc.)?