there's a lot of pitfalls in the GPL. You're obviously using some GPL software (ie., linux kernel and probably some tools as well, I didn't bother to snoop around your squashfs ramdisk images). Already here, you need to provide source for the GPL components
Also, unless you have been very
careful as to which libraries your proprietary application links against, you need to either provide .obj files so that people can re-link (if you use just a single piece of LGPL code), or your entire source code (if you use just a single piece of GPL code).
And you should also distrbute a copy of the GPL license
with your program, which you don't seem to do (and you might want to check if your EULA is even compatible with the GPL). Heck, it wasn't even obvious from your site or documentation that your program is linux-based (well, I had a hunch, and it was obvious when I snooped in the .iso image, and using google to search your site did find some hits in non-obvious places).
Not trying to be a prick, just pointing out how dangerous it is to mix GPL with commercial software.