Hey guys, thought you might want to check out a library that I recently found which is totally awesome. It's a generic system that takes a plist and constructs a UITableView style UI from it, like the ones found in the settings app. It was originally designed for setting type screens, but I'm currently adding support for callbacks and such so you can make live UI's with it (UI's that send a callback every time a slider changes it's position, etc). I've also added several more UI control types to it, which should make their way into the trunk 'soon'
http://blog.nottoobadsoftware.com/2009/03/mysettings-a-settings-api-for-the-iphone/
Should save everyone who needs a complex settings UI a ton of time!