Here's an idea for you: instead of slowly amassing followers, like on Twitter, or carefully culling your friends list over time on Facebook, making sure everyone is in their appropriate list and category, collect and dispose of friends like you ask for the time or a spare cigarette on a busy city street.

That's what Lokast, the self-described "disposable" social network lets you do - carry your throw-away lifestyle over into the digital world.

The LoKast iPhone app was released earlier this week at the South By South West festival in Austin and is the perfect app for finding yourself among throbbing masses of the technologically inclined. But what is this disposable thing? From the email we received this week on the app's release:

Disposable? Yes. That means unlike Facebook which is friends and family, this app is about finding random people in close range and being able to share and see parts of their public digital profile including downloading their public-share videos, music and pictures. The best part, is that after you're in that close range, you may never see them again. IE: Disposable.

According to the press release, the name is short for "local casting", as opposed to broadcasting, and "aims to eliminate the need for physical media sharing, thereby eradicating physical CDs, plastic cases, video DVDs or waiting to get back to a PC computer to share and experience content."

We have to agree that SXSW seems like the perfect venue for this type of app and we'd say why not give it a shot? We haven't made it all the way downtown yet to be close enough to give it a full whirl, but it looks more than capable from toying with it.

Now, the thing is, we can't see a lot of people using this outside of big, hi-tech cities or conferences. Where does this fit into our day to day life? Are we really going to run around town staring at my screen trying to see if someone else with the same app is nearby? We don't think so. For now, though, we'd say give it an install and run around collecting some demos and see what people are listening to.