I think everyone (myself included) got complacent about Japan and China buying our bonds - hence lowering rates.
Japan is going to have to defend their currency soon, and China is having a few problems of their own. Their property market is in meltdown.
I'm not sure at this point how our property market is going to shake out, but I know the banks have been promising everyone and their uncle rates are going to go down.
I'm betting rates go up.