They've been allowing the beta for Snow Leopard customers since the 10.6 release anyway, but I'm still running 2 with Safari set to 32 bit. (Well, I've actually done my usual semi-annual switch to Firefox for right now anyway; I'm getting sick of waiting for all that Flash crap to load on so many pages these days, and NoScript really helps with that. And with the pop-up ads and stuff, too. I'm sure that I'll be back to Safari in a couple of months, though.

)
Version 3 looks great, but I can wait for them to shake out the bugs.