I went from an 12 inch iBook G4 with 1.2Ghz and 768MB ram to a white macbook CD 1.8Ghz with 512MB ram (waiting for my 1GB to come in the mail) and i just thought i'd share my experiences after 4 days of use. It's thinner The thinness is noticeable, even the box is 50% thinner It's hotter, I can feel the heat through my clothes. With the iBook i barely felt anything on bare skin. coreduotemp reports the temperature to be around 50-60 degrees celcius constantly. (i hope this is normal?) It's not much faster I can't say that i notice things go any faster, this however may be because i'm used to my CD mini with 1GB ram and hopefully will change when i get 1.2GB ram in the laptop. It's brighter Sometimes so bright that i feel it's hurting my eyes, and even brighter than my HDTV on full brightness. It's widescreen I love this feature. I watch a lot of tv series and now i can have full screen goodness even on the go Keyboard is weird This keyboard takes some getting used to, i still miss some keystrokes after four days of heavy use Well, that's about all i can think of right now. Can't say i notice any big faults on it, other than some weird plastic around the camera (you can push the plastic in so it clicks), the battery seems 0.5mm too thin, and most of the edges around the laptop, included the edges around the openings for the ports and DVD-Drive feels sharp, like you're gonna scratch or cut yourself.