It's the same thing, only you are limited to the editor, multiplayer, you can't use those mods you have to attach to Arma2 on the client side (ACE2, etc), and it has no Operation Arrowhead or DLC stuff. It's just a trial for 'Arma 2 multiplayer', and like when you join a server using a DLC pack you don't have, the textures and sound quality are set to 'very low'. It's still not a bad deal, free Arma2 online would just bring more players playing Chernarus type maps. It will be Arma2.exe minus the CD protection.. and who cares now that Arma3 is on the horizon. The only good 'hack' for this would be unlocking the high quality texture/sound stuff for free.. which would be piracy anyway and isn't really a problem in the first place. It's not a 'whole new game' like many of you seem to be thinking, wtf