New nails in the dollar's coffin:

Geithner to Urge Chinese Leaders to Rely Less on Exports

If the Chinese economy can rely on internal consumption, they will not need to export in exchange for worthless US Treasuries.

What's driving the great bond freak out

I think people who think there will be a recovery, move from Treasuries to stocks, while people who don't believe in a recovery, move from Treasuries to commodities. Either way, Treasury prices decrease (yields increase).