I sent an email a few months ago for this same issue on my Transformer Pad Infinity. This is the response I received.
So apparently there is no problem. Needless to say I've never played the game on my tablet because my fingers couldn't accurately click the menu buttons and kept moving my guys to incorrect places. This can get you killed pretty quickly in a battle. I can't imagine how much worse it would be playing it at 2560x1600.
Would they really have to change the image assets that much, either? I've played Avadon on my 2560x1440 desktop monitor and had to change the res to about half that to make it playable due to how everything scales. Surely I could just run the game at a lower res on my tablet with similar results?
Anyway, I hope this issue is resolved (not holding my breath) because these games would be awesome to play on tablets.