Product Hunt is like a "Reddit for Products," where people submit products, web sites, and projects they've been working on -- then vote them up and comment on them. This week, we talk with Ryan Hoover, the co-founder of the site, who joined us from a car parked outside Y Combinator, where he was getting ready for the incubator's demo day. Plus: news about Nest hacking, Foursquare's relaunch, and the latest details on the iPhone 6 -- both of them.