It’s been widely reported that Drag-n-drop on the JavaScript layer is going to be a significant challenge. The canonical fun with magnets demo for Cometd relies on Drag-n-Drop for moving magnets around, so that part of the demo is currently a no-op. That said, the rest of the app seems to work pretty well, with the built in version of Safari not skipping a beat in receiving events and moving items on the screen in response to those events. The speed performance is obviously much better with the wifi connection, but we are still having success over the EDGE network as well. Bottom line: Cometd appears to work out of the box on the iPhone!

P.S.: Does anyone know how to take a screenshot with the iPhone itself rather than using a digital camera?

Update: There’s now screenshot utility for the iPhone.