If you think the iPhone is the only device with multi touch, then you better think again. Mostly.
This is possible because the navi-wheel on the front of the device is capacitive meaning it can measure movement without actually rotating and it can do it in multiple places -- hence multi touch. It's not multi touch on the actual screen, mind you, but it is a neat proof of concept and we suspect that there could be some interesting uses for it.
Keep in mind you mind you will need to have an application called Nav Debug Tool in order show off your hidden feature, but after that it gets all touchy feely. The guys at wmpowerhouse are trying to get their hands on the API in order to make this quick hack a reality for all Diamond and Touch owners.
via wmpoweruser.com; Big thanks to Marios for the tip!