PGP Desktop 10.0 Beta has just been released, with full support for Snow Leopard 32 and 64 bits. This is very good news for all the security concerned people who were stuck on Leopard (including me)!
PGP Announced this on their beta blog, on this post.
If you want to participate to the beta, here is the link! If you are interested I suggest you subscribe here: I registered on their previous beta page but didn’t get any announcement, using this page I got an immediate reply.
The beta program will end on November 30, and the update should be free if you are covered by the maintenance agreement (i.e. if you purchased less than 12 months ago or if you renewed the maintenance).