Wifi + Login Screens = Fail
I see dozens of posts about router configuration problems. That's great if you have control over the router.
Since I bought my iPad, I've stayed in four hotels and could not use the wifi service at any of them because iPad can't get past the login screen.
I live in Singapore and have an account with the public wifi service "Wireless@SG", which is available most places I go daily. Can't get past the login screen on the iPad. So I go to the coffee shop and have to put away my big iPad and go back to my little iPhone if I want connectivity.
So basically, with the current issues, the iPad is awesome if you have control over the router, but for those of us who travel 80% of the time - which is an ideal consumer for the iPad - we don't have the luxury of configuring the routers. I don't think the hotels are running to fix their HTML5 compatibility just for one device.
iPad, iPhone OS 3.0