Most entertaining talk
For me it was Piers Crawleys lightening talk/song "don't care how you young people talk to one another but don't take that tone with your mother". Can I have the lyrics please ;)

Most useful/relevant talk
Plack/PSGI by Miyagawa. It's great to see that folk much smarter than myself are solving issues that directly influence my work. More of stuff like this and I won't be forced to use Ruby any time soon ;)

Most "what the hell was he on about" talk
Definitely Matt Trout's BEGINing Perl talk. Something about compilation units, Moose, antlers, Damian Conway, black magic, e.t.c. I understood about 30% of that ... about 20% more than I anticipated ;)

I left with a satisfying feeling that I am somewhat better than I give myself credit for (mostly because I understood any of Matt Trout's talk). I missed most of the conference including the trip to the pub and did not socialize as much as I would have liked. Perhaps in my next conference I'll be more friendly :)

All in all a great experience that I would recommend to any one!