Went into an apple store today since the refresh and here are my observations vs the 2010 model: 1) overall it runs much hotter than the out going model. This was very noticeable. I compared it to a 2010 uMB and 13" MBA. 2) Its insanely fast! I was browsing the web and going to my favourite sites and they kept loading instantly. I was blown away! I did the same test on a MBA and although fast there was a tell tale lag when pages were loading. Must have been fractions of a second by noticeable none the less. No lag at all on the I7 when without an SSD. 3) It was noisey in the shop so couldn't make an assessment on noise. Didnt seem any worse in the same environment though. Thought I'd share that info with you guys if anyone is trying to get a range of views on the new models. Personally, I dont think i could put up with the heat. Im typing on my 2010 uMB and its completely cool to touch everywhere. The 2011 MBP reminded me of my old core duo machine which ran so hot i could feel the heat on the underside of my desk. The I7 is awesomely fast though...I want one!