An update;
As of now it has the following calcs
ppO2/MOD (takes depth & EANx% gives ppO2 and EAD)
EAD/MOD (takes EANx% and ppO2 and gives MOD and EAD)
SAC (Takes cylinder vol, Pressure before, pressure after, average depth and dive time and gives SAC)
AirTime (takes Cylinder colume, pressure, SAC and Depth to give a dive time)
Gas Weight (takes Eanx%, cylinder vol, pressure and gives gas weight and surface volume).
Have also added a nice YD logo (assuming Mods don't object)
I'll keep adding some bits, and keep this thread updated, so if anyone wants to be my first tester then please let me know
Cheers
Conor