My immediate reaction was "Wasn't MS Surface announced in 2007?"
But then I googled it and realize Microsoft stole the name from their interactive surface initiative (which never really took off), renamed it
PixelSense, and applied the Surface name to an iPad like tablet.
There are some thing I just don't get about Microsoft.
There is almost nothing in the iPad that wasn't in my 2004 era iPaq running Windows CE - or as it was renamed: Windows Mobile. I used that extensively until the power socket broke and I got fed up with waiting for Microsoft to get into the phone market and so bought a Blackberry.
The iPaq had decent handwriting input, versions of Excel & Word, remote desktop etc. etc.
What it didn't have was Jobs marketing it.
Since then Microsoft have let Apple dictate the market and are playing catchup to technology they already had.