Funny you mention the RAM clearing -- a buddy in HS and I wrote a program to simulate the ram clearing screen so that we could keep using our programs and not lose them. Then the teachers caught on and then instituted a policy that they would use the calculator to make sure it had cleared.

Well, just meant we had to make a 2.0 version that allowed you to do operations on the calculator within the app. That one we didn't distribute to friends, but just kept for ourselves.

Man, those were the days...