Cell Phone Signal Extender?

Thinkgeek has a device that claims to extend signal strength for cell phones. Please keep in mind that your cell phone company will not endorse, approve, or even suggest you use this device. Below is the description..

A lot of technology goes into making your cellphone work. So you would think that we would be more understanding of dropped calls and garbled conversations. Nope. Nothing gets geeks into a seething tech frenzy like poor cellphone reception… and it doesn’t help that we couldn’t resist the glossy black smoothness of the iPhone and AT&T sucks for cellphone service. Sad.

Well quit staring at your one-bar-worth of signal strength and pick up this handy Cellphone Signal Extender for your home or office. Simply mount the included antenna near a window and run the coax cable to the base booster unit. You get 2500 square feet of prime signal area (enough to cover 2-3 rooms on two different floors). We went from 1 bar… to 5 at the ThinkGeek secret headquarters and made our iPhones very happy in the process.

Important Note:
You will need to have some signal (at least one bar), for the Cellphone Signal Extender to work. You can’t extend what’s not there… right?