I got to play with the iPad 2 yesterday at BestBuy. They have a display set up with the iPad and the iPad2 side by side so you can compare them. Nice.
Unfortunately they had no internet service...no 3G or wifi. So no way to really compare browser speeds. What few programs they did have installed tough I found to run very similar between the two devices. The iPad2 is thinner and lighter, but not enough to make me impressed. If I did not already know it was thinner and lighter I may not have even noticed it.
Bottom line...I walked out of BestBuy with my new scren glare protector for my iPad and no urge to upgrade. I also told others who where checking them out about the $100 discount on the iPad and saw no one buying or signing up for iPad2. It seemed like there was no real interest in the new device. Just curiosity at best.