Vs10GlobalGenerator reports PlatformToolset of 12.0 for WindowsCE builds, and not 4.0, breaking WindowsCE .vcxproj builds
It appears d07f453f brought in this regression. WEC2013 .vcxproj files must have a line such as:
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
where ToolsVersion is "4.0", and not "12.0"