Just got my MBA 13" on Monday. So happy. Now have 256g as opposed to 60g in my old Powerbook and 8g ram as opposed to less than 1. Anyway, I'm having problems executing pinch and zoom. It does not seem to work at all when I'm surfing the web. I am using Firefox, if that makes a difference. I have pinch and zoom (two fingers) turned on in the System Preferences (?) folder. Just seeing if this is an issue for anyone else.