I've tried a few different tablets over the past few years. In fact, there's one next to my bed right now. I rarely touch it.
It seems I like using a laptop. I've got a laptop next to the bed and I just grab it and do my surfing or writing or viewing or whatever. I never reach for the tablet, always preferring the laptop.
When I just want to read something quick, I'll grab my Samsung Galaxy S II phone. That's my "tablet" of choice.
Microsoft is ready to enter the tablet game, having unveiled their Surface tablet. It's a nice looking piece of hardware with a couple of nifty features the iPad doesn't have. I think the Touch and Type covers are pretty cool.
Hopefully Microsoft has learned a lot from their disastrous Zune experience. I doubt the folks at Apple are shaking in their boots, but the Surface is interesting enough that you can't immediately dismiss it. I mean, it even has a built-in kickstand!
I'll stick with my laptop and Android phone, but if you're looking for an iPad that runs Windows, you'll definitely want to check out the Surface.