BlackBerry maker RIM was the biggest winner in a slowing smart phone market in the second quarter, roughly doubling its market share from a year ago to 17.4 percent, research firm Gartner said on Monday.

Motorola's market share continues to erode as more and more cell phone users are opting for smart phones, such as RIMM's Blackberry and Apple's iPhone. The company recently hired Dr. Sanjay Jha from Qualcomm to try to rebuild the headset division. Unless something is done quickly to stem the decline in market share, "goodbye Moto?" may be the company's new tag line.