Same problem here!!
I had only been using my GWF for about a month before the upgrade, but I too am seeing about a two hundred calorie difference between the display and arm band (the display is higher and consistance with the numbers I showed prior to the upgrade). My step count and activity...
Morningstar, I have noticed the same thing!! Yesterday my burned calories were 230 higher on my display than what uploaded when I sync'd my armband. My steps and activity were higher as well. I sent an e-mail to Body Media this morning but haven't heard back from them yet. I didn't have this...