Sullla on 08 July 2008
Hmm... highly speculative, but makes for very interesting reading. I think that you probably undervalued software somewhat, as I believe that the console manufacturers usually take in $5 to $10 in licensing fees, not the $2 stipulated. A higher profit on PS3 software would mean a lower loss on PS3 hardware, which would help explain some of the large figures listed.
What this does indicate is how significant the cost of developing the current consoles proved to be. I don't think the PS3 has lost $5 billion, but it's almost certainly more than $3 billion in the red. Whether or not you believe this is a good thing (as MikeB seems to think) is up to each individual.
End of 2008 totals: Wii 42m, 360 24m, PS3 18.5m (made Jan. 4, 2008)
