While reading the Loving Tech, I discoverediWebKit. Whats iWebKit? Well, in a nutshell it gives you tools to create a bridge between a mobile website and a iPhone/iPod Touch App. What does this mean? You can make some beautiful websites, easily. For a demo click here. Anyway, I made my private messaging system (which I codenamed 'MailX') a nice little conversion using iWebKit. Check it out here. Its not completely finished, but it works! So grab your iPod or iPhone and check it out!
Update: Maybe I'll post a little tutorial on how to use iWebKit