How do I cancel a draft on my iPad. It seems to be frozen.

Try force closing mail by double tapping the home button to bring up multitasking, then holding the mail app (in multitasking) until a red circle with a "-" in it appears in the upper left corner, hit said symbol, close multitasking, and re-open mail.

When you close an app as described above - you can not be using the app at that time. Tap the home button before you go to the recents tray.

If that tip doesn't work, reset the iPad

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.

Found on another thread...Try adding another recipient and the cancel/send buttons will come back!!

Then you can just delete the person. Way better than a reset.