Although this isn't the first VoIP solution for the iPhone (that belongs to either SoonR or that one videoconferencing winner), TruPhone seems to be the most elegant (in theory) VoIP app so far. Although the service is really early on in its development stages, the end product will be able to switch seamlessly… »
There's no confirmation other than some guy's word, but Macapper says third party native (Cocoa) iPhone apps are coming soon. Apparently, during one of the WWDC evening parties, an iPhone engineer responded, "Yeah. There will be" to the question of "are there going to be third party Cocoa apps on the iPhone."