I got a touch cover with mine. Couldn't get on with it (personal preference I guess). Grabbed a wedge keyboard, it's awesome. Same reason as martinmc78 - just pick up the Surface out of the "cradle stand" the wedge keyboard cover makes and use it as a tablet, return it to stand I've got a desktop replacement really. I use the wedge mouse with it too. Has made a real difference when moving around - don't have to lug a multi-kilo laptop around with me, but still have access to everything I could possibly need.
It's a personal choice though.