Is 3D graphing still on HP's Prime to-do list?

[John Colvin]

The way the Prime handles variables and the separate RPN and CAS environments is a major downside to using the Prime, an otherwise extremely powerful and versatile calculator. If the 50G can can do symbolic math using the same variables and plot the results without converting from lower to upper case, it seems that it wouldn't be impossible for the prime to do the same. Maybe in a future firmware upgrade.