> My thought is that all of code that relates to TenFourFox
> may be useful to developers for OWB, as a reference

I don't think this is the case. As the browser components are heavily intertwined, being able to use code from one browser for another browser based on a completely different code base is more the exception rather than the rule, even as reference.

> the whole code that Cameron Kaiser has worked on, as he may be
> sympathetic to our cause as there are not so/as many PPC systems
> left to utilise any PPC code, let alone his PPC code

TenFourFox is written in C++, not in "PPC code". Exceptions to this are the JavaScript JIT compiler and AltiVec/VMX vectorizations of some decoders (audio/video, images etc.).

> I am not [...] unsure as to whether it makes any sense or not

;-)