Couple questions for u guys!!! Has anybody install sl on a first gen MBA or any MBA gen and got the 4 fingers swap working?did apple finally activated the 4 fingers swap? Did anybody have try to install the single copy to more than 1 MacBook? The reason I ask is cuz apple os doesn't usually have any license keys like iLife 09. So pretty much u can install the software on any MacBooks. Thanx in advance guys.