First, let me say thank you to the programmer(s) and supporters of this program. I just downloaded it a couple of days ago and now I have wired a PIC interface and connected a transmitter that was found in a dumpster and I couldn't be happier.
I will second the suggestion earlier for controllable wind. Speed, direction and gustiness would be great.
What I find I miss is a beeping vario. I would rather hear beeps than have to look at the vario on the screen. I suppose one could emulate the and have it talk, but beeps would really suit me better.
Since the Picolario reports on battery voltage, that inspires another suggestion. How about real life battery/fuel usage so that it is possible to run out.
I think I am getting too greedy for a new user.