I agree with Niezck. This idea is a bit wierd, and I dont think it would go through because of all the ill-will you've garnered by your constant arguing Tenacity. However, the idea itself is certainly one which could be played out in the future.
Nothing is set in stone, this is roleplay. Evolution happens. Nomads have had plenty of time to evolve, way more than the two million years we took to evolve on Earth. Nomads needing the mindshare is the same as saying that humans need to interact with other humans. No, we dont, but we'd prefer to have the option there. Mutations happen in genetically engineered beings. Perhaps another mindshare formed by chance?
The fact that they fly in space unsheilded from ionising radiation means they could easily mutate in a number of different ways. Humans weren't designed by the natural process to have cystic fibrosis, sickle cell anaemia or other genetic diseases, but we do... Rogue alleles form by chance, whether the organism itself was specifically designed or not, and errors also happen in the transcription of DNA.
Hostile to each other is a part that makes no sense, though. They'd probably just treat each other with caution if they couldnt establish telepathic links with each other.. They would have no reason to fight each other. Tribal instincts dont exist as they do with Humans (eg. Outcast-Corsair perpetual war).
Perhaps I don't "understand" what has been written about the nomads, but it wasn't written explicitly in SP and hence cannot be completely concrete.
