Kotaku claims that PSP has reached the 50 millestone.

http://kotaku.com/5152847/psp-reaches-50-million-in-worldwide-sales

What happened?  Huge VGchartz undertracking?

Well Duh and they overtracking DS sales last i heard it was 84 Million...

shipped, shipped, shipped.

Ahhh...

PSP is way undertracked. I agree that its probably 50 million.

You've got to remember, as great as VG Chartz is, they're only estimates based on small samples.

@Lostplanet22
5.5 million on shelves does seem a bit much though...

Already posted: http://vgchartz.com/forum/thread.php?id=60368

Those are shipments.

Its really odd why he never upped the PSP or PS2 numbers to reflect the shipped data. And the Ds numbers still seem to high. I was at a store today and they had more DS systems then games for it. And most stores near me keep crazy amounts of them instock compared to all other systems.

The problem is there are Media Creat for Japan, NPD for the US and we sometimes have figures for Europe openly posted in the forum and I can't remember anyone complaining about vgchartz undertracking the PSP. If anyone has actual evidence to back up the claim (I just want to know where we are undertracking it if that's the case) I'd really appreciate that. I doubt Brett forgot to adjust PSP numbers, we had adjustments for most consoles during the last weeks when a viable source dissagreed with our numbers.

Sony also likes to sell their systems in many locations we or any places don't track.  Eastern Europe, Russia, Middle east, South America, Parts of Asia.  Add in a slight undertracking in the western world and japan and we have the missed numbers.  Its not like it really matters though.  Our numbers will equal Sony numbers sooner or later.