There are number of companies selling cell phone antenna signal booster to improve cellphone reception and call clarity by boosting the signal reception of the phone. There are however complaints against cell phone signal booster stickers and you will find mixed reviews about its boosting capacity.
To install an external cell phone signal booster:

Locate a window where you get signal.
Mount the Signal Antenna outside of the window.
Place the Base Unit across the room (15 feet away) where you want to …

Apple Inc., maker of the iPhone, and Palm Inc. both lost share in the second three months of the year. RIM the maker of the wildly popular BlackBerry wireless device, held 53.6 percent of the U.S. market for smartphones in the second quarter, up from 44.5 percent in the first quarter.Research in Motion Ltd. captured more than 50 percent of the U.S. smartphone market in the second quarter, up sharply from first-quarter levels.
RIM’s strong market position was driven in …