Here's one for SLR users (both film and digital) who want to use an LCD to frame their shots. The Zigview is an adapter that includes both a CMOS sensor and a 1.9-inch LCD; it attaches to the camera's viewfinder and can rotate for high and low-angle shooting. Nothing in the specs about how much image coverage you get or how sharp the display is; it also blocks the viewfinder, so switching back and forth between the Zigview and the finder could get tedious. Still, it's still an intriguing idea, and could be worth the £119.99 price if it really works as advertised.
[Via DPReview - Thanks, Matt H]