Likewise, Asus' eee Transformer Prime has been around for a while now. While somewhat pricey for an Android tablet it's still a lot better value than the Surface.
My neighbor got an Asus Transformer (the T300 model or what ever it was called). It's definitely slick and I could type quite well on it. Can't wait to see how the Win 8 RT app ecosystem plays out, because I like a lot of things MSFT is doing with their multi-tasking and side-by-side apps. Having good multi-tasking hot-keys on the keyboard is a big boost in productivity. Get me a good RDP client on it and I could find it very useful for a lot of work scenarios.