iBatis comes with three schema files that provide intellisense to VS.Net.
According to the iBatis help docs, the location should be this:
C:\Program Files\Microsoft Visual Studio 10.0\Common7\Packages\schemas\xml
or this if you have x64 installed:
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Packages\schemas\xml
They list two other alternatives, but neither of them seem relevant to 2010.
No dice so far. Is there a different schema folder for 2010? I'm sure I'm write on top of it.
The new MyBatis website doesn't have any docs that mention it.