The best RPN calculators live at RLM
I ve used the PC version of the RLM 15C emulator for years, but always wished for a more direct replacement for my ailing original. Yesterday, I saw this app for the 11C on the iPod from same folks. 11C RLM app (enter) new iPod (plus) best $210 I ever spent! My only complaint is that this is not available for the 15C!
RPNgineer about
RLM-11CX