When I go to a conference, I spend hellish hours before the event to get in front, then sneak away to do a little each day to make sure things aren't going wrong, only to return to another week or two of sleepdeprived days catching up again.
Heck, even the most sleep-deprived attendee would know they were video, blogs and Twitter. I spoke at PubCon last week -- about How SMBs Can Use PR Campaigns To Grow Traffic and Alternative Discovery and SEO - Feeds, PDFs, and Blog SEO.
This is a backdoor way to get in front of iPhone users today - and it doesn't require resource constrained, cash strapped, and sleepdeprived small business owners to get lost in the alphabet soup of SEO, CSS and xhtml for .mobi and WAP optimization.