Well, I reckon you can't really program the three laws into a Ghost seeing as it's a weapon that chances are will have to eventually be used against humans and/or zentraedi.
Also, the term UAV (and therefore UCAV) covers both unmanned craft controlled either by remote or by AI/programming (in fact modern thinking in UAVs prefers the latter).
And interference would affect even AI since they basically wouldn't be able to send data back to the fleet (of course the jamming used by the Vajra also disabled the Ghosts, indicating some form of EMP).
I've read in other forums where not only did they speculate this, but also that S.M.S. may stand for Shinsei Military Services (instead of Speed Miracle Spacy as stated in the S.M.S. Song) and further extrapolated to the VF-27 being by Galaxy and the VF-25 being by Shinsei (which contradicts what we know, since its been stated that the VF-25 is by L.A.I.).
I think someone already did a comparison in the episode 7 thread. It's breifly seen on the nose of the plane right before it cuts to the cockpit view with Brera.
A bit OT but all this discussion about implants and BDI reminded me of something I read about a new game controller that runs by reading thoughts.
http://gear.ign.com/articles/772/772295p1.html
Although in this case, the system seems to read brainwaves based on certain motions (moving hands, facial expressions, etc.) and not thoughts like the BDI in the YF-21.
I think this is something that sets her apart from most typical characters in most anime. Most of the time, such confidence is made to be superficial, especially when it seems to come of as a bit arrogant. Makes me wonder if some anime viewers have been conditioned to that type of characterization and as a result tesnd to dilsike Sheryl.
If anything actually, Sheryl reminds me of Basara except maybe not as arrogant/insensitive as him.
I dunno, Asuka was more of a spoiled brat trying to cover up her issues with arrogance, while Sheryl may seem arrogant at times, she comes off more as mature, confident, comeptitive, driven yet at the same time playful character.
That's definitely an interesting possibility. In fact, I'm gonna add a bit more by asking, is he even working the controls or is it all in his head (I don't working any visible controls in ep. 7)? Could cybernetic implants have made the BDI from the YF-22 a working possibility without the risk of feedback from the system?
It seems to be tradition of sorts, I think it's been done in other series as well. I haven't watched Zero lately, but I recall Shin dumping the improvised "super pack" they built using QF-2001 Ghosts to avoid some missiles.
I believe it as already mentioned somewhere that the packs have enough thrusters to enable a fully armored VF-25 to move like a stripped down one. The rest is simply Ozma's skill.