"Ultimately, it's a niche product with potential. If we'd been able to slip a SIM into it and use it anywhere, it would have been a whole lot more."

I don't understand where the reviewer keeps his head.. he's got a phone with a SIM card in it somewhere on his person anyway, doesn't he? Completely independent of whether he chooses to bring the N810 along or not. So what keeps him from using the N810 "anywhere", as he says?

(I would have added the above as a comment to the review, but as that requires a rigorous registering process including even my phone number I won't bother.)