It generates some GUI code to display sliders and the cam image and whatnot. Opening it as another process will most likely be easier and much less painless.
if I'm not mistaking, you're starting a GUI app (probably X-based) every X number of seconds... not quite handy unless that's exactly what you need. If you're not in front of your comp every X seconds, you'll end up closing Y number of app windows :)
In Re: Webcam 0.2 I use cqcam which is a command line tool.
Greetz
Beatnik
... Quidquid perl dictum sit, altum viditur.