It's a consumption device, and a very good one at that. Creation? Not so much. A Windows tablet is more capable, but with less quality. You'll get flash, you'll get Java, but you'll get a horrible touchscreen, and an OS that isn't meant for that kind of input device, as well as 2 minute startups with a 3 hour battery life. If you bought the iPad to run a site or something, you probably were dropped on the head as a child.
EDIT: Oh, and I'm not one of those idiots who are anti-Microsoft or whatever. I don't own a Mac, I own a Dell Inspiron 1545 (with Blu-ray. Let's see a Mac that can do that) and a desktop computer with a quad core, etc. When I say a Windows tablet is worse, I'm talking about Windows being a touch interface. As an OS, Windows is perfect in every way but for use in a touchscreen device.