I think people are unfair on Rare. For a start they are a big company, a few people leaving (and it really wasn't many compared to the size of the company) isn't going to affect them so significantly. I think have had a hard time last generation because of the transition coming at the wrong time, between generations, they couldn't really settle down on single platform, Gamecube projects had to be transfered to Xbox, then Xbox projects had to be transfered to Xbox 360 - but in all this, despite not being as good as in the N64 days, they've still yet to make a bad game in my opinion. I think the test will be when they finally release a pure Xbox 360 game (a game that was started on Xbox 360 and released on Xbox 360, which there hasn't been yet from Rare). I think their GBA games also prove that they're still a good developer.
Has there even been any proof of Perfect Dark on the DS (ie: pics or footage), or is it one of those i seen Halo on the DS but no one else did (Matt from IGN).
As far as I know some Rare employees talked about how they got Perfect Dark (or at least a level from Perfect Dark) up and running on the DS to test the hardware, this was before the DS's launch when they first had the development kits. Nothing was seen of it, and I don't think they had plans to make it into a full game.
but it's better than the N64's no dual stick
Actually the original Perfect Dark did offer a duel stick mode by playing with one controller in each hand. Also, I think the control system that the N64 Turok games had was a good alternative to duel stick.
The DS would definitely suck at the controls.
Yes it would, thats why the DS needs its own games and not console ports that try to replicate control systems it wasn't designed to do. I think most developers have realised this now.