Crossplay?! Make a move on the desktop, pick up where you left on the iPad? Friggen awesome. I'm looking forward to downloading this next week.
If you are going to continue on the iPad anyway, why not just play it on the iPad all the way? It is not like Frozen Synapse plays better on PC or anything as it doesn't need joysticks or steering wheels...
Sorry if this has already been answered, but does this include the expansion as well as the original base game?