I've created this blog to help people who are developing for the iPhone and iPod Touch. Everyone should check out the iPhone Development blog as well as it is very well written and has been incredibly helpful. It is located here: iPhone Development. I'm fairly open as to what topics I may be covering. I'll try to cover each topic well rather than covering random little tidbits - but the first few days may seem like just that. If you have any suggestions for future topics, or any ideas for the blog you would like to share leave a comment and I'll be happy to try and help or look over what ideas you might have.
Hope I can help, happy reading!