From the Windows 8 app developer blog:

  • Windows Store App Labs are in more than 30 cities around the world for all app builders – developers, designers, and entrepreneurs.
  • Check out and test the newest Windows 8 devices.
  • Get technical guidance from Windows 8 experts.
  • Get design guidance from leading edge design agencies.

The App Labs have Windows 8 devices in multiple form factors for you to try out and test your apps on.

Go to www.windowsstore.com/applabs to find a lab near you and reserve time with Windows experts and designers.