The update to 7.1 fixed the minor crashing issue I was having although I still have crashes on certain apps but I feel that's more to do with the apps themselves rather than the iPad itself........they haven't been updated to run on OS7.
Have you noticed which apps it happens on.....or is it just at any time?
Try a reset of your iPad and see if that fixes the issue and let us know how you go.
Hold the power off button and the home button simultaneously, keep holding them in and you may see the power off slide appear and disappear, wait until you see the Apple logo appear before releasing the buttons. It will take a little longer for your iPad to start.