After some diliberation, I've decided to wait and see your results. I'm fairly positive it will work, but I took off the back case and took a look around yesterday to see what we're getting into. It appears as though the cooling system is very minimal, so I'm not sure how much extra heat the i7-2720qm is compared to the celeron, but it might be an issue.
Im definitely going to throw in the 128gb SSD I just purchased, and I really hope that a quad will boot in this thing, as it would make it one of the best deals around.
It would be awesome if you run cpuid and see what voltage your running before and after the swap, as well as seeing temps with coretemp for the celeron and i7. Thanks for being the guinea pig
The other feature I would like to look into is adding a bluetooth receiver internally, so I'll let you know what I find.
Lastly, I found this video from another
forum on a similar subject. Make sure to check it out, as it helped me get that back cover off, and mess with the internals. Th video is at the very bottom of the page called upgrading ram tutorial.
Link to video