Just bought a refurb Rev A for £750 from Apple and have some questions; Heat- cold to the touch or mega hot ? Speed - what's your take , fast slow or middle of road Knocks and bumps - can the Rev A take a beating in a rucksack and come out un scratched and dented ? Battery Life !! - i know what apple say about the time but what is the real score - 2 Hours - 3 hours ? I've always run my Mac's on and sleep mode - and never turn off unless i'm out and about for a long while - how does the Air handle this ? Any route for a Ram upgrade later down the road ? will this thing take 4GB ? Cracking open the case and upgrading yourself ? i've done many 15" PB and 17" MBP's for Ram and HDD is the Air Harder or simple Apple Care - Apple UK want a silly amount - any better options to look at ? ebay have some around £100 - these any good ? Since i'm moving from a 17" MBP to the 13.3 Air i'm expecting to miss my Screen size so External Monitor's , easy as before or fussy about the connctions ? Software i'm planning on using on the Air : iLife 09 iWork 09 Rapidweaver 4.2 Handbrake ( for ripping from Apple's external Superdrive ) iTunes ( music on Hdd - Movies TV shows on NAS Drive streaming over Wireless N ) any one have any issues with Software above Thanks for any advice!