No, the Soundbomb isn't a lo-fi, post-modern iPod speaker. And no, you definitely don't want to leave one under a bridge in Boston. But if you're an artist or a prankster, you may want to get on the waiting list for one.
The idea is simple: record the sound of your choice to the Soundbomb, hide it somewhere, and enjoy as the motion detector-based Soundbomb greets/annoys/scares the crap out of passersby by blaring your audio recording.
Imagine recording ghost noises to it and hiding it in a dark basement, using it as a stolen-beer alarm for your fridge, triggering inappropriate noises in a business meeting...you get the picture. Hilarity and/or performance art ensues.
Unfortunately, you won't find the Soundbomb in any stores, but that's by design. Soundbomb builder Felix Beck instead rations out Soundbombs on a need-to-have basis. He wants to know what you'll use it for, and if it sounds good enough to him, he'll send you one.