Do you have a desire to start programming on Windows Mobile devices and you don't have the latest and greatest version of this mobile OS? Are you a regular user/IT pro and just curious to see how this new version looks like? Or you want to install a mobile app that cannot run on your current Windows Mobile device (as I did)?
Check the Microsoft Device Emulator v1 that emulates Windows Mobile 5.0 and v2 that emulates Windows Mobile 6.0. Now, you don't need an expensive device to check out MS's mobile OS :-)