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The majority of mobile users are still using standard handsets, but when it comes to smartphones, RIM remained the leader with 41.6 percent of the smartphone segment in December of 2009. This number was down a full percentage point from September, however, while Apple's share (25.3 percent in December) was up by 1.2 percentage points—a trend that RIM has been battling with Apple for some time now.
Equally fearsome is Google's comparatively huge 2.7 percentage point jump (to 5.2 percent), while both Microsoft and Palm also lost points over the same time period. Although RIM still has a long way to go before giving up the lead to Apple, and Google still has plenty of share to gain before it overtakes Microsoft's number three spot, the trends show that consumers are warming more to the iPhone and Android phones than those traditionally marketed towards enterprise users. (Palm, in the fourth spot at 6.1 percent, looks like it will be surpassed by Google within months if the two companies continue on their current trajectories.)
As with most metrics reports, the numbers from comScore don't necessarily match up with numbers from other firms, but the trends are similar. Mobile metrics firm AdMob recently noted that iPhone OS and Android were both making steady gains in the mobile ad market as of November 2009, while others (such as RIM, Palm's webOS, and Windows Mobile) were sliding.
Source: Arstechnica.com