Hi I was wondering if someone could explain to me why people would upgrade to Lion. on the sneak peek page they advertise: the mac store - we already have it Launchpad - there is a app on the app store called QuickPick which is practically identical. Full screen apps- there are apps that already do this like iPhoto (will every single app be full screen i.e. itunes, safari?) i'm not trying to criticize, I was just wondering if bigger changes will be revealed before release? otherwise it seems to me it might not be too worthwhile. thanks.