Are you using a wifi + cellular iPad?
Try this - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased. http://support.apple.com/kb/ht1430
Send feedback/suggestions to Apple.
http://www.apple.com/feedback/ipad.html
Submitting Feedback to Apple
https://sites.google.com/site/appleclubfhs/support/advice-and-articles/submittin g-feedback-to-apple
File an Apple Bug Report, at http://bugreport.apple.com/
Cheers, Tom