I downloaded and installed Snow Leopard A380(WWDC version). It feels a little bit faster than Leopard. But lack of some features I wanted:

1. Exchange support. It may support Exchange 2007 only. I cannot get my corp's Exchange server 2003 setup.

2. Dock Expose. Demoed at WWDC, but not included in the version distributed in WWDC?

3. Cisco VPN. The new cisco VPN network connection cannot work. I have to use cisco's own vpn client again.