Hello Joe,
As with any Visual WebGui SDK, this preview installation for VS2010 .NET4.0 cannot live side by side with another Visual WebGui VS2010 .NET4.0 installation.
We have plans to integrate the Enterprise Mobile product into the regular Visual WebGui installation in the future.
Currently they are two separate installations that cannot live side-by-side over the same MS Visual Studio version.
Regards,
Ori Cohen
Support Manager, the Visual WebGui team