It may not be legal in most civilized nations to ride a Segway on the sidewalk, but for those still risking their lives on a two-wheeled machine, things are about to get a lot safer. SoundofMotion has developed a clever new warning system that turns your phone into what sounds like a roaring motorcycle, and not content with just playing a pre-recorded loop over and over, it's actually designed to rev up and down based on the speed and acceleration of your bicycle. The application will run on "any Bluetooth- and Java-capable phone," and it interacts with a "wireless BT sensor" that gets mounted on one of your wheels. Unsurprisingly, the device responds to the motion sensor and lets the carefree motorists around know you mean business when crossing an intersection. The app is currently sitting in beta, but the creators hope to have a final rendition ready to go before you make too many summer treks, but you better be willing to face total embarrassment (and have one loud speakerphone) to save your skin before picking this up. Click on through for a demonstration.

[Via Slashphone]

What makes a Bluetooth headset great? Does it need to be so small as to be virtually invisible? Does it need to be a brilliantly-designed fashion accessory? Perhaps easy to use, easy to hear, and easy to be understood? Ultimately, of course, no model is perfect; every headset on the market is a compromise, a reflection of the manufacturer's (and the buyer's) priorities. So we basically went into the review of the Bluetooth variant of Aliph's lauded Jawbone with that same mentality, hoping that it'd prevent us from getting distracted by any miscellaneous shortfalls in the product -- the Jawbone's draw, after all, is its noise reduction circuitry, and that's what we really wanted to report on here. Instead, we came away with a shockingly positive impression of the Jawbone not just as a technological overachiever, but as a legit headset that we could see ourselves using day in and day out. Read on to find out why.

It seems that ringtones of every frequency have skyrocketed up the list of popular pet peeves (at least in boardrooms and lecture halls), but the Chicago Sinfonietta went against the grain by kicking off its 20th anniversary season with a piece that would drive interviewers, ministers, professors, and less-than-understanding managers insane. David Baker, a music professor at Indiana University, crafted the "participatory Concertino for Cell Phones and Orchestra" after symphony director Paul Freeman conjured the idea of having attendees blast those monophonic jams on cue in order to create an abstract form of musical art. Utilizing colored signals resembling a stoplight, guests were armed and ready to emit whatever ringtone they pleased, and the cacophonic barrage of high-pitched beeps reportedly formed a euphonic medley that only an artist could appreciate. While we aren't sure if this newfangled form of music will ever hit the iTunes Music Store, catching it on Verizon's V CAST service might not be too far fetched.