What should be the difference to the Ablative Armor talent on p. 255 of the Core Rulebook? Since the generator is derived from Borg technology and the Borg do make extensive use of said talent, I’d say the generators and their (impressive visual) effect represent a Refit but not a distinct talent.
Also already covered, I’ve compiled the relevant references, rules and some personal recommendations in another thread, yesterday.
See p. 86 of the Gamma Quadrant Supplement.
See p. 82 f. of the Delta Quadrant Supplement.
I like the idea of having expanded PDF (I doubt full books are really an option) on races that are not already covered in the existing supplements. On the other hand, those could well blend into era-specific sourcebooks. 