The iPad is a tremendous device for working on the go, but it requires a lot of “duct tape and chewing gum”. You have to find apps and workarounds that let you be productive until you can get back to your “real” PC, and find ways to smoothly integrate and sync data between the two. But, with a Windows tablet you just use the same tools and software you always use.
Hmm. I look forward to the reviews of folks who have actually touched a Surface...