http://ironfront.deepsilver.com/en/

I m very tempted but want to wait and see if it would be more polished than I44 or not. Also I m not clear if this is infantry only or not and if it can be as ridiculous or as serious as you want it to be (ie the freedom of ArmA2 games). Then again ArmA3 is coming soon(ish) and my time available for gaming has diminished seriously...
Anyway the most important reason to buy would be for MP!
So is anyone thinking about getting it? Could it replace our I44 sessions?