And, further, there's been no suggestion that just because it'll have HSPA any ability to download and run any code you want will be restricted. In fact, the opposite.

Indeed, the move with things like the Android Dev Phone and the OpenMoko is to allow you to do pretty much anything on the hardware.

Given it'll probably be sold as-is (i.e. not part of a network/carrier subsidised deal by default), and it's the (US) networks which usually insist on these restrictions; there's no reason to worry.

Final thing, it'd kill what Nokia are trying to achieve with Maemo.

...so, yes, as the posts above say, a terminal app will still be available. Or I'll eat my N810.