In case you needed it confirmed yet again: Nintendo totally wins at selling stuff. Gamasutra went through the NPD statistics for 2008 software sales with a fine tooth-comb, and discovered that Wii and DS titles formed almost half of all games sold during 2008.
Of the 268 million games sold in the U.S. last year, 132 million (49%) were for Nintendo platforms, compared to 86 million (32%) for Sony consoles, and 50 million (19%) for Microsoft. Furthermore, the Wii software tie-in ratio isn't looking too shabby: an even six games per system, an identical figure to that of the PlayStation 3.
For more statistics that make us want to joyously high-five a bobcat, hit up Gamasutra.