10% of the market?
I concur. Last quarter MS said Surface sales doubled, but they haven't given any solid numbers and last quarter they had a $0.9 billion write-off in order to dump their old inventory. One estimate suggests that sales can't be more than 1 million at best, more likely something like 850k. Now, compare that to Apple's 14.1 million units over the same quarter and that Apple is something like 30% of the tablet market, you realize that any projections of MS Surface capturing any substantial part of the market are just silly.
On the bright side, I did just see my first Surface being used in the wild recently. Granted, we didn't actually use it for anything, but I finally did meet someone who bought one. Maybe MS can do what they did with Xbox and just continue dumping money into it until they out-subidize their competitors (a.k.a. stereotypical monopolist behavior).