We have the technology already but it's currently only implemented for Multiplayer. You could actually create a multiplayer game with only AI players, but you wouldn't have quests or tactical battles.  It would mostly require some UI changes in game, but we'd also have to consider how many saves we'd let you have stored in the cloud, etc. It's not on the schedule right now, but I'll ask about it getting on the schedule.

If you really do that much back and forth between two (or more) different computers, I'd recommend a cheap USB flash drive.  They only run around $10 for 2GB, and it will do much more for you than just moving saves back and forth if you have other stuff you do between the different computers.

Yes truly a USB drive will not break the bank you can get one for £10, bige enough for your needs. As for implementing this I wouldn't hold me breath they where going to request it be added to an enhancement list, but there doesn't seem to be heavy demand and they probably have more important things to work on at the moment.

This would be a nice feature. But in the meantime, I recommend trying dropbox. It is very easy to copy the files over to there and to make it really easy you could download SyncBack and sync the save game directory to dropbox... It'd be pretty easy to setup. Actually if I still had my laptop that is exactly what I would do...

Hmm, this seems like a great solution for me, I already have dropbox...

I've never used Windows Live Mesh, I'll have to take a look into this.

As for the USB suggestions, that is a good idea, I was just wondering about the cloud feature as it is extremely convenient.  Like the majority of regular computer users, I have a USB drive, I just never thought about bringing saved games back and forth this way.