I would just like to say that my playbook is my perfect shopping companion especially for malls. I have my blackberry in my pocket and i'm both tethered and bridged to it so I can bbm and email without taking it out. The tethering makes it crazy convenient, I was going from store to store and searching coupons online with my playbook. The speed was quite good and i'm using my 9700. I would think the tether speed would be a bit faster using a 9900 because it's "4g" hah. I was able to go to a stores website bring up a 20 percent coupon and the guy scanned it off of my playbook. Just amazing! I couldn't see myself doing this with a 10 inch tablet, the size was just perfect for the shopping.
