Just don't put a sim card in it and you'll have only wi-fi like on the n810.
А България...
Man, that sucks. So I probably can't buy until it appears in a European market with the US/UK variant. Or unlocked in the US. Notable contrast between US and Europe launches - unlocked in Europe with no sudsidised handsets available yet but US seems to be set for subsidised handsets only at first. That's capitalism for you, I guess.
Flash Player 9.4, eh? <sigh> (Fixed in Harmattan?)