No glib answer here... but lest we forget, unique proprietary hardware is involved and that complicates things. As we see with the SD cards, damage from bugs can be very real. A power user will be irritated but at the same time understand the complexity and participate in solutions; "lesser" users will rant and little more (not saying it isn't their right, but...). So I can understand why Nokia would open betas for browsers and other separable apps and keep firmware testing limited. Like zero noted.