As I understand it, issue 1 should not affect Jailbroken iphones that remain 'locked' to a carrier (ie ATT in the States). What about issue #2???
Issue 2 is resolved:
Quote from Dev Team Blog
As of Thursday morning we now have a workaround for #2. For #1, we’ll try our best to get it fixed but we may end up releasing a preliminary jailbreak in which YouTube doesn’t work for hacktivated devices, and then follow that up with a more complete jailbreak when we can.