ios+App+Devel

Great page of resources http://www.onextrapixel.com/2011/04/12/a-useful-collection-of-iphoneipad-apps-developer-tools-and-resources/

Appcelerator http://mashable.com/2010/04/05/titanium-tablet-sdk/

Open Source iPad apps http://maniacdev.com/2010/06/35-open-source-iphone-app-store-apps-updated-with-10-new-apps/

Laker Platform http://dev-ios.blogspot.com/2011/05/laker.html