I have started using Firefox 3.6 and it does feel a little faster than its predecessor, though it's definitely not as snappy as Chrome. I should note that this is how Firefox 3.0 and 3.5 also felt at the time of their release, only to not feel that fast as time wore on and we received successive security and stability updates. I wonder why.
The New York Times now encourages you to walk away if you have an "underwater mortgage" on a house, that is, you owe more money on the mortgage for the house than its value in the current housing market. I find such analysis based on the negative equity of a house somewhat puzzling. It might make sense if you have bought a house purely for investment, but not if you call it a home that provides you protection against the elements. If you give up your house, you still have to find an alternative accommodation and very likely pay rent for it.