UIDatePicker and iOS7

If you haven't still noticed UIDatePicker has changed in iOS7. However any app compiled using the old xcode will still have the old date picker. The new picker is quite different so be aware of any usability issues. In my case the problem was that I couldn't see the picker at all because of the new colour scheme. So don't forget to check this before you submit your app using the new xcode.

Old UIDatePicker

source: http://www.jademind.com/

New UIDatePicker

Source: http://stackoverflow.com/questions/17906725/invert-uidatepicker-colors-in-ios-7