It does seem likely that they actually mean PSP and PS3 sales combined, but that is not what the article is saying. Actually, the wording in the article is pretty clear on that:
"The PlayStation 3, which shipped with an Internet connection from launch, is one of its most widely used network-capable products beyond PCs. Around 50 million of the consoles are in the hands of consumers [...]"
Maybe it's a mistake by the journalist, or perhaps the article was cut shorter and this error got overlooked. Anyhow, if Sony wishes to make Blu-Ray a success, it seems poor strategy to undermine that goal by offering a directly competing product. It sends a message to the market that even Sony thinks the future is in downloading content and not in physical media, so why would others enforce Blu-Ray in that situation?
