Wow, last month the PSP's software sales really sucked ... it trailed the list completely, with just under 100.000 titles sold. Compare to the DS, which comes in at number two with about 8x that. But the PS2 beats them all, at just under a million titles sold!
I do expect to see the PSP a bit more up there for November though, which Vice City Stories out and being sold rather much, and other titles like Killzone, Ridge Racer 2, Lumines 2 and so on probably well also. November should be a crazy month anyway, with the holidays coming up. Still, that was a big step back from last month - pfew!
Also noteworthy is that Nintendo leads as the publisher with the most titles sold, BUT it also seems that 98% of all titles sold for Nintendo platforms were published by Nintendo, proving that it is always hard for other publishers to compete with Nintendo in that area (especially as from the looks of it, the few titles not by Nintendo were actually for the GameCube).