takes a look at PSP vs. DS development, and tells the awful truth. It seems that the DS is just kicking the shit out of the PSP in lots of ways. According to a Famitsu report, during the week of 07.25 thru 08.28, the DS sold 337,360 units, whereas the rivaling PSP only sold 113,953 units. Also worth mentioning is that the NDS has sold more units to date this year than any of the other game machines.
After looking at the PSP graph:
The article states that the while the PSP has a very easily unerstood concept. It plays games, has an internet browser, plays MP3s, and all mobile -- a so-called dream machine. However, anyone buying a PSP probably has some form of all of these other features. It's nothing really new. it also states that while all of the many remakes and ports of old school games are fun, they are not a new experience, and anything resembling a ground-breaking game has yet to be released for the system.
On the other side of things, there's Nintendo's rather complex graph:
The DS on the other hand, while a games only machine, offers a totally new experience with the touch screen. Even at this point, from a sales perspective, the GBA has better sales potential unlses a game makes use of both screens or the touch pad. As such, Nintendo has said that the DS is not the GBA's successor.
There's quite a bit more analysis in the article, but nothing really new. The point that's most interesting though, in the end, is that according to a 2004 CESA poll, development costs for a PSP game averaged 90 million yen, where as the average for a DS game was 37 million yen.