The job market's pretty tight right now, and the economy's still in the give-a-crapper(tm).(I love that , btw) You've already expressed your displeasure to your boss.
Does speaking up more get you any better chance of getting back on the old team? Or does it just
p.o. your boss and his boss, get you known as troublemaker, and put you on the fastrack out the door?
A tough spot you're in, I don't envy you, but wish you good luck whatever decision you make.