I got the Messenger, it's actually a decent bag; the body-facing padding is a great relief if you have to put it on your lap for long durations.
There's extra padding lining the bottom of the laptop pocket, but not the 'main' chamber; it has minimal padding.
If I was to be carrying a laptop AND a tablet, I'd get some foam rubber (easily obtainable from Home Depot / Lowes / Sears / etc. as the foam rubber used to insulate around air conditioners) to line the bottom of the main chamber.
The charging pocket for an Android device is bigger than the iOS pocket. Also, the cable for the iOS pocket is roomy enough for the Lighning to 30 pin adapter. I already tested the cable with an HTC EVO and it charges just fine.
Also, it's nice that you charge the bag using an external charger; the charging port has a rubber cap making it water resistant, so you don't have to worry about rain shorting out the system.
Be advised that the battery does add extra weight, that's the tradeoff for being able to charge devices.
Also, the battery sits in a proprietary housing that is bonded to the inside of the case, you can't just shove an Anker in there and expect it to work. The higher capacity 6000 mA battery costs $50 direct from the Powerbag company and will definitely add to the weight..