The thing is, Nokia isn't wrong when they say it's the most open "mainstream" GNU/Linux mobile distribution, so from their PoV there isn't much incentive to be more open. It'd be nice if someone else stepped up and gave them a run for their money. Who knows, maybe this time next year we'll be comparing the relative openness of various vendors' MeeGo products.
99% of the time I'm ssh'ed into my phone, running tinyfugue, and telnetting out to MUD/MUSH. The rest of the time I'm running around like Gir from "Invader Zim", chanting "What's that do? what's that do?" while trying out new (to me) software in extras.