Those who keep score, Samsung recently overtook Nokia as the top mobile vendor in the world. Analysts from IDC and comScore have published their own studies that bring detailed info on the standings of phone makers and also mobile OS market shares.
IDC notes that the mobile market shrunk 1.5% compared to last year's first quarter. That's a loss for feature phones though - the smartphone market in Q1 of 2012 is up 42.5% year over year, beating IDC's expectations (but lower than the growth in Q4 2011).