Just a quick note: I'm confirming that the Soft Cell that I purchased recently for my MacbookPro-17 (Size 1 Vertical Soft Cell) does appear to satisfy the new TSA requirement for being a "Checkpoint Friendly bag", at least in my first experience at PDX yesterday. They didn't even question me when I put the Soft Cell containing the MBP as a separate item on the belt.
This will be nice... I can't give up my Brain Bag as my road-warrior solution, but I also didn't want to keep pulling my laptop entirely out of my Brain-Cell-in-Brain-Bag just to put the laptop in a grey container on the belt.
Out of habit, I still put the Soft Cell in a grey container, but I'm considering just setting it directly on the belt next time, since the sponginess of the Soft Cell seems sufficient (to me, anyway) to protect my MBP.
The downside is that I can't slip my MBP in and out of the Soft Cell as easily as the Brain Cell for usage at my destination... it seems just a bit too snug. I end up having to pull the Soft Cell entirely out of the Brain Bag (and it doesn't clip in) as a two-steps-to-usage process now.