Lew Bryson just posted a recap of last year's session beer vs extreme beer brew-ha-ha (yes, another pun!) over at his Session Beer Project blog. In retrospect the whole thing was a little silly, but it was fun while it lasted. I even tried to get in on the action by posting a nasty response to St. Sam's Ale Street piece. Unfortunately it seems that the Ale Street site dates back to the Clinton administration so the formatting and everything on my post got all jacked up. They showed me.
A while back Lew also linked to a blog post by Martyn Cornell. I found it significant because for the first time that I can recall I actually see the definition of the term "session" as used as a noun (as opposed to an adjective used to describe a particular beer):
"The “session” itself, the long night drinking down the pub with mates"
I still have yet to hear it used conversationally, and since it's a British thing I'm not really holding my breath that I will any time soon. I'm still not completely in love with the term "session beer". But it's better than "extreme beer", which as Garrett Oliver once famously stated, is "irredeemably pejorative".