I try to be pretty responsive to email and I try to be on IRC most days, but this summer I'll be away a lot. So, in case you need stuff from me between now and August 15th or so:
This week I'm mostly offline because of the Open Source Bridge conference, but I'll be checking my email and responding to urgent stuff every night.
July 9-16 I'll be offline a lot because of Wikimania (and travel to and from), but again, I'll be checking email and responding to urgent emails nightly.
July 27-August 15th I am trying to go completely offline for a vacation. Greg Varnum (varnent) is my backup for Google Summer of Code administration, and Rob Lanphier (robla) is my backup for everything else, including coordinating 20% time.