In many ways, the last traces of the 2009 holiday season have disappeared - you won't find many decorations up, presents out, or leftovers refrigerated (we hope). comScore's just released a report concerning the mobile market, though, and the stats are well worth examining. comScore's report covers the changes that occurred between September and December of last year. During that time, RIM stayed on top in terms of smartphone platforms, but it lost a little bit of ground.