Quick and cheerful, grab any modern smartphone that's not Windows Phone, and visit http://m.microsoft.com/windowsphone/en-us/demo/index.html (or tinyurl.com/metrodemo) to be presented with an interactive demo of the Metro UI. Perfect for giving your Android, iOS or Symbian friends a look at a different mobile phone interface.

While it's not the full experience, it's enough to act as an appetizer before you let them have a go with your phone! Let us know how you get on!