vB3 has been around for almost a year, and betas has been indeed around for a good long time. This does give hackers a chance to make hacks for the forums.
I am very sure that there are a very good number of vB3 hacks out, just waiting to be released. Remember that vB3 hacks cannot be released until the Release Candidate (RC1) is released, which is I think due sometime in December.
So my bet is that there are a very good set of vB3 hacks made. Have patient. I am waiting for those hacks as well