World Championship Winning Computer Chess Software Program & Downloads for Chess Databases, Analysis and Play on PC, Mac, iPad and iPhone — Visit: Hiarcs.com
If easy to do I suggest the following new features.
1 arbitrary variations in game scores
2 mutivariation mode in analysis
3 clickable notation so tapping on move changes board position
4 tactics problems or way to import them and keep track of score
I'm waiting about an Hiarcs Chess Explorer version for iPad !
There's rumoured to be an iPad Pro featuring a larger screen and faster processor, no timeframe just gossip in a magazine. HCE could be good on such a bit of kit.