Summary of Web Application Libraries for iPhone
PastryKit — it is from Apple, but it is not public, you can see it from the iPhone User Guide, it will be released to public hopefully.
- http://stackoverflow.com/questions/1143589/what-is-the-pastrykit-framework
- http://daringfireball.net/2009/12/pastrykit
- http://ajaxian.com/archives/pastrykit-an-iphone-webdev-library-from-apple
Sencha Touch — you should definitely see their kitchen sink, it is pretty cool.but there is no commercial license yet.
- http://ajaxian.com/archives/sencha-touch
- http://mobile.tutsplus.com/articles/news/sencha-touch-html5-mobile-framework/
- http://www.endofnative.com/

iUi — not that many people using it I guess. I build a site with it, if it is sth fast and easy to learn, iUi can do the job.
- Sites build with iUi — http://code.google.com/p/iui/wiki/PoweredBy
jqtouch — demos seem very nice, probably better than iUi in terms of current release capabilities and size of community.
iWebkit — demo seems promising, but not ready for prime time.
SproutCore — not for iPhone specificly, but its demo seems nice.
So my choice for the next task is jqtouch. not iui this time.





