I upgraded to 12.10 a while ago and since then my boot has been quite a bit slower than it was under 12.04.
I installed bootchart so I could see what was going on and there seems to be significant amount of time waiting for upstart-socket-...
I'm not sure how to find a log of this process to see what it's waiting on. Or perhaps there's a simple fix in /etc/network/interfaces.
Here's the bootchart: http://imgur.com/4nI9bBH