Do you need a Pocket Projector?

My research group were recently assigned a large amount of cash for new equipment. Beyond the usual list of desktops, laptops, and netbooks, I decided to ask Twitter for more interesting suggestions.
The idea of a portable projector appealed from both a work and a social perspective. Offering the opportunity for demonstrating webometric presentations on the fly (it's a very visual subject), as well as watching films and TV on the big screen. The best Pocket Projector I could find was the Adapt ADPP-305 Pocket Projector. Luckily it arrived on Christmas Eve, so I have had a couple of days to test it out - albeit it mostly for watching Christmas TV.

The projector promises up to 100 inches, although you'd want a very dark room for it to be a clear 100 inch image. So far I have connected my laptop and my Wii to the projector, and run it off the mains, although there is also a 4GB internal memory, and a battery if you want to leave the laptop and leads at home.

There's no doubt it is a nice bit of kit (although one of the tripod legs is a bit lose on mine - it's nothing a bit of glue wont sort out), providing a good picture, and is reasonably priced.

As projectors continue to improve I can imagine the traditional TV being squeezed out by computers on the one side, and projectors for the big screen experience on the other. On Christmas Day I projected the Gruffulo onto the wall at 70 inches; a 70 inch flat screen would not only cost thousands, but would continue to take up space when not being used.