Why Userspace Sucks - (Or, 101 Really Dumb Things Your App Shouldn't Do)

First off, the title is really provocative;) and it gathered lots of hackers. For my implression, this is the most entertained session. Dave Jones is a really funny guy, he made the audience laugh several times and communicated with them very smartly but surely he succeeded to let the userland develpers know what you want them to do.