I'm seeing a HUGE decrease in shutdown and startup times on my Early 2011 13" MBP w/ a OCZ Vertex 3 SSD. On Snow Leopard my startups were longer than with the stock HDD.
FYI; I put SL on my SSD by just copying my installation from my HDD using OS X's Disk Utility and I installed Lion as a regular update; no fresh installs at all.
The trend I'm seeing here is that anything older than early 2011 is having issues. I wonder if it's hardware/chipset related?
I agree, everyone that has this problem seems have a mac from ≤2010