Motorola was the most-used handset during a three-month period ending in January, according to a new report from comScore. Among smartphone users, RIM dominated, Google gained share and Microsoft lost out.
– Motorola is the leading handset manufacturer in the United States,
while BlackBerry-maker Research In Motion leads the smartphone space,
according to market research firm comScore.

Google also is gaining share in the smartphone space, though Microsoft is slipping a bit, comScore
said March…