Hey HN, I've been running barcamps, conferences & hackdays for over five years now and I wanted to set up a barcamp style event but on the subject of startups, I've got a date, venue and some intresting ideas I'm going to try such as '20 minute mentor meetings' where I've convinced friends in relevant industries (PR, marketing, legal, accounting) to come and advise startups for free during the day and our cofounder speed dating to try and build some long lasting relationships.
My aim is to grow this over the next few years to other cities (and countries) if it works.. My other event http://www.thinkvisibility.com, is five years old in March and has (I believe) a good reputation in it's own industry.