The results are in for sales of video games and consoles in North America for the month of May. My verdict: Nintendo RULES. With Pokemon Diamond and Pearl together moving over half a million copies (apparently Diamonds are more sought after, as that version outsold Pearl by 100,000 copies),Mario Party 8 sitting between them in the #2 spot, and the Wii and DS Lite together dominating the hardware chart, there is no sign of slowing down for Nintendo.
Activision also had a stellar month, with two Spider-Man 3 games and two Guitar Hero games sitting in the top 10. See? People are still buying PS2 games!
Hardware
[NDS] 423,150
[WII] 338,278
[PSP] 221,120
[PS2] 187,765
[360] 154,932
[PS3] 81,604
[GBA] 80,554
[NGC] 10,728
Software
331k NDS POKEMON DIAMOND VERSION
314k WII MARIO PARTY 8
249k PS2 SPIDER-MAN 3
238k NDS POKEMON PEARL VERSION
227k WII PLAY W/ REMOTE
217k 360 FORZA MOTORSPORT 2
184k 360 GUITAR HERO 2 W/ GUITAR
140k 360 SPIDER-MAN 3
138k 360 COMMAND & CONQUER 3: TIBERIUM WARS
131k PS2 GUITAR HERO 2 W/GUITAR

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[...] Last month, Nintendo ruled the gaming world (in the US at least), with the DS Lite and Wii selling for a combined 761K units in the US. Games for those systems took up four of the top five places in games sales as well. [...]