The stickers just happen to be 2"x4" which is exactly the right size to emblazon them on the back of your iPhone. Ever since lijit gave it to me my phone has rocked a lijit sticker:
but now...at least for the next week...it's a DrupalCamp phone:
About quarter of the calls I get are organizing the camp so it seems only fitting.
If you're not convinced by these stickers that this will be a rocking weekend, here are the sessions.