Griffin ClearBoost - Antenna-boosting case for iPhone (Does it work?)

Griffin ClearBoost - Antenna-boosting case for iPhone (Does it work?). We know that there are many antenna-boosting scams. And it seems 'adding an external antenna without opening the actual device and connecting the wires simple doesn't make much sense to us' (CMIIW). Anyway, we've recently spotted Griffin's antenna-boosting case for iPhone called ClearBoost which promises to improve the signal reception on your iPhone handset.

According to Griffin, ClearBoost features include:
+ Boosts the built-in antenna of your iPhone
+ Fewer dropped calls, cleaner signal
+ Wider service areas
+ Physical protection against bumps and scratches

Well, we don't try it yet, and don't know whether it works. In case you're interested, CrunchGear has a nice review about this Griffin ClearBoost iPhone accessory. Alternatively, you may want to visit Griffin website to get more information on the product.