Nice!

My first calculator I bought was the HP41CV, and it stopped working a couple years ago. I grew up with RPN and thats how I think. Researching the history of the HP41 series for my 13yr old son, found this app! Wow! I can have my CV back... And even upgrade to the CX! Regrettably, I cannot migrate my programs, nor plug in my expansion packs, but its fantastic to see the old familiar keyboard on my iPhone!

Phil_ROCKS! about i41CX, v7.0.1