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The only things I find an upgrade with the surface 2 is the performance the resolution.
Disappointed is too strong, but I somewhat expected more.
I mentioned this earlier but I think because most reviewers haven't bothered to use a Surface recently they'll be comparing the release version of the original to this new unit which would seem to give the Surface 2 a huge improvement when the Surface RT works fairly well now.
It's part of the reason I haven't upgraded yet, besides the resolution boost I'm not certain it's a meaningful upgrade.