We found a video showing an iPhone running World of Warcraft. It looks surprisingly full-featured, but this isn't a standalone app- more of an evolution of what we've seen before.
As with any computing system when it gets a major overhaul in its operating system (OS), the iPhone 3.0 has some remarkable features but there are some little things that need adjusting, even moreso if one has upgraded to the iPhone 3GS.
It seems oddly appropriate to talk about security today. Between malware and identity theft, everyone has more to think about these days. Many services are adopting multi-factor authentication in order to better protect their users. This generally involves a little dongle attached to your keychain that reads out a new, random number after a short period of time.