PCalc [$9.99 - iTunes link] is a great RPN Calculator for the iPhone but now developer James Thomson is curious as to what users would like to see in an iPad version. How curious? He's made a cardboard version to play around with (above) and is offering TiPb readers ten (10) free copies of PCalc to tell him what you think!

So, head on over to the TiPb Forums and let him know just exactly which features you'd like to see on that big 9.7" iPad screen. His favorite ten (10) answers will get a copy of PCalc for iPhone for FREE.

Give-away starts now and ends Monday at 12pm, PT. Promo codes require a US App Store account (Apple's rule, not ours).