patrickh, the RPN functionality is great. Here are a few suggestions:
+Keyboard operation: Needs to execute when an operator is entered via the keyboard (ie 25 (enter) 10 + should immediately return 35)
+Keyboard entry for other functions (ie, quick access to ^, etc)
Additionally, check out:
Pocket 12C SE Financial Calculator. They make a Blackberry product as well, but not RPN.
It is amazing to me that there is not a developed RPN calculator for the blackberry. This exists for the Treo, but the blackberry has
8 million subscribers, and I would guess
90% of whom are users of hp12c's or hp 15c's. Seems like a prime business opportunity to me.
Thanks!