Samsung seems more likely to take up Sony's place, if that hasn't happened already.

OT: One of the interesting things mentioned in the OP is the lack of collaboration between Sony's different business. And it is a shame. The PS3 is very popular BluRay player among sites that review BD movies and TVs because it has better picture quality than most BD players. Why has no-one decided to pick up the necesary bits from the PS3 to launch a low-to-mid grade BD player that produces better picture quality than most if not all its competitors?

Or why haven't they launched an app for their consoles, smart TVs and/or smartphones that gives users early acces to singles or trailers from Sony's divisions a couple of weeks before their competitors? Or even give them the chance to rent or buy a digital copy of their last blockbuster earlier or cheaper than the competition?

Too many missed opportunities.

Completely agree with this. So many different departments, yet we see virtually nothing shared between products and no advantages to the content they own appearing on their products.

As an example, when I went to see Casino Royale (Sony owned) at the cinema, they had an advert for the game. No mention of Playstation and at the end they had the X-box 360?! If Sony own the licensing, why did they not stipulate some advantages to the Playstation version? or at least neutral advertising.