Summary: We have one of these at the office, so I looked into getting one for myself. The one at the office has a weird thing where the video flips back and forth now and then as if it is trying to adjust keystoning. Then I found and bought the Epson EX7200 for just over half the price of the InFocus. the Epson has higher resolution, HDMI input, a brighter picture with three LEDs, is ceiling mountable, and generally has much better specs.
Summary: So far I'm extremely unhappy with this projector. The displaylink is pretty nice, the USB is much more compact than bulky VGA/DVI cables. However, the displaylink install seems to corrupt every single one of our XP laptops; after connecting the projector, they stop being able to play video and DVDs, and it doesn't work even after disconnecting, rebooting, or a system restore.