I use my iPad about 98% of the time. I use my desktop computer rarely, and when I do, it's more like updating programs (mainly iTunes), getting more music, and creating something on GIMP. I guess I could say I use my computer slightly more than that though, because most of the time when I use it, I just use the Teamviewer app to log in to my computer. I have a netbook from my school, but it rarely gets used by me. I use my iPad for emails, social networking, surfing the web (which is my favorite thing to do on it), casual gaming (my PS3 doesn't really get used much), Netflix, and even light content creation. I can type fairly quickly and accurately with the on-screen keyboard, and I don't ever really finding myself wishing I had a physical keyboard. My thumbs are actually large enough that I usually thumb type in landscape (it's easiest that way to me

). The iPad is what I've always wanted in a computer, portability, natural interaction, and simplicity. Instead of focusing on all the little things that get in the way (and big) on a traditional computer, I can focus more on the content that I'm consuming or even creating. I can use it wherever I want, and it is really immersive. It is truly my favorite device ever, and I never want to stop using it.
P.S. I am jailbroken, so I haven't synced my iPad since I upgraded to 4.3.3 because I want to keep my jailbreak. I jailbroke for iOS 5 style notifications, better customization (though I didn't really change that much), and multitasking gestures. I won't sync until there is a jailbreak for iOS 5.