First, they're still working for most other people after the update. So the problem's on your end, and oddly enough, with all your whinging and hollering, you don't make anybody feel like helping you understand and fix it.

Second -- if you insist on blaming the update -- just flash back to PR1.1.x! Really, we won't stop you. (Not that this will necessarily fix things for you, since as I said, the update's not to blame.)

Finally, please do sell it. No N900 deserves to be stuck in an abusive relationship with someone like you.