theres another company that makes these too.
Eitherway i'm surprised lilliput doesn't have a touch version.
nonetheless it looks pretty nice, good brightness as well.
Depend on the price its pretty nice.
for $100 its a pretty nice addition to your existing screen.
Using it as a main screen could post some potential problem:
ie. no video to the screen before the driver is loaded ( until windows has started)
video may not play at full speed
cpu consumption due to usb driver instead of vga.