More seriously, I tried the above two this afternoon for syncing -- perhaps not hard enough, because unlike you, I wasn't successful in the TextMate --> Skim direction. Maybe it's a quirk of my setup? (I'm using 1.5.11 (1635) on OS X 10.6.8.) In any event, my "old" bundle is the only one I found a workaround in, perhaps because I understand its languages (shell and python) better than e.g. ruby.
Ah. So I'm on 10.8.2 and running the latest TM2 build (from source) so I'm in no position to help at all! I'm pretty sure that the official latex bundle on github has some "TM2 specific" changes applied to it, so you are probably best sticking to the one you have.
I would recommend trying out TM2 though. I used it for my thesis and didn't have any problems with the official latex support (at least, not after I applied some patches in the first few days of use!). You will have to get a 10.6 build (the more recent builds have been 10.7+ only).
David.