oscon cfp 
I had no clue the oscon 2007 call for participation was open until now and can you believe it ends in Feb 5th? PHP.net didn’t list it until the 29th of Jan - so that gives a person 1 week to write and submit for it… kinda short notice. Would suck if you were on vacation.
Anyway here is the link for submitting a proposal and the currently listed tracks include Linux, PHP, Perl, Python, Ruby, Java, Databases, Desktop Applications, Web Applications (client-side and server-side), Windows, Administration, Security, and Emerging Topics.