I still have an "accordion-style" laptop bag that I'm very happy with. I'm tempted to get a new laptop friendly one if I keep flying so much. Theoretically, this week is the end of my travels for a while though (YEAH!).
The guidelines below took affect on August 15th. You can leave a laptop in a bag in the OK section when you send it through the x-ray machine.



TSA: New 'Checkpoint Friendly' Laptop Bag Procedures