Of course, the differences is that Patrick is adamant about not creating things with military uses...

Nah, he's secretly on Dr.Evil's payroll, that's why we don't hear from him that often - he's in the undersea lair somewhere off Fiji (with Pixel)

The bloke (Bruce Simpson) is certainly not one to go quietly - he posts on the newsgroups quite a lot and his website is pretty clear on the matter:

http://www.interestingprojects.com/cruisemissile/

Gareth