Playdek did the great Agricola app for iOS! Let's hope they do C&C as well!
They're the ones that have been targeted for doing C&C on the iPad...unsure 'bout Napoleonics though...from what I've heard, Ancients is the one they'll be workin' on first...guessin' Napoleonics might be next, depending on how well Ancients works out...
...Prussians are listed as Q2 2014 release so could this point to the Marshals and Grand Battle expansions? Certainly the former could be a card set and the latter an 'Epic' style deck and rules...
I'm hopin' they'll be listing a Grand Battle expansion on the P500 some time this year...