is it possible? i loved the demo, bought it and it still downloads, so i thought Id use the time and ask the obvious :)

I'm still at the demo and I'm also wondering if I buy now will the save carry on to the full version?

The save games from the demo won't work with the full game. Your save games will show up in the full game but it will show a deprecated message as there are changes between the demo and final version.

Your progress however is saved so you don't need to replay the demo missions and can start with the third mission right away.

So maybe redo achievementstuff, but still no NEED to replay. Sweet!