what's going to be hot there this year, katie linendoll?lot of people always ask me about south by southwest. here's the deal. three festivals in one. a film festival, a music festival, and this ever-growing tech presence at an interact active festival, which kicks off the whole thing. every year, what happens is there's tech panels and tech speakers, a lot of tech parties. but really what you're gunning for if you're a start-up going down there, you want to be that breakout start company. in 2007, it was twitter. 2009, it was facebook. 2011, the most popular thing were group messaging apps like group me. this year, it's all about what's called people discovery apps, don. and the app getting the most attention so far is actually highlight. and this is pretty interesting. i downloaded this over the weekend. highlight is an app, once you install it, it will let you know what any of your friends -- it's activated by where are facebook profile, it will let you know when they're actually nearby. i actually ran into laurie s segall, which is cnn'

katie linendoll, she brings geek chic to the tech world all the time. r tech news person each week. can we call you "person"? reporter, correspondent, contributor, whatever. katie, people are thinking about upgrading from one device to another. how do that go about using these so-called re-commerced site. what's that all about? >> more and more people are turning to re-commerced sites. and all that means is trading in your gadget for some extra cash on various sites. when people want to upgrade like the ipad, they're turning to this get some extra money. in the first hour of the new ipad, someone was selling their old ipad every eight seconds on gazelle.com. if you want to get the best bang for your buck, lock in your price early, before the announcement happens. you can get around $270 on average for an older ipad model. now, since the secondary market is flooded with ipad 2s and also original ipads, you can get about $225. you can see those numbers. gazelle has taken 140,000 ipad offers, just in this last month alone. 90,000 of those actually came afte