Ok... I am a little embarrassed to ask such a nube question but here goes. I don't have my iPad2 yet (arriving tomorrow... fingers crossed) but I do have an iPod Touch (3rd Gen). I use it mostly at home and connect to my wireless network without a problem. However, when I am out and about I have found that I cannot connect to a lot of public hotspots such as Starbucks (Bell hotspot) or when at the airport (Boingo). These wireless networks show up on my iPod's settings screen and I do get a checkmark beside them indicated I am connected, but I cannot use the internet or mail or any online service. Yet I see a lot of folks with laptops that are connected at these locations. When I asked how they connected, they show that a website pops up and there is a logon or connect button on the site that gets them going. I do not get this popup... hence no connection.
I assume this will be the same situation when I get the iPad. Obviously, I am missing something in the process.