Exactly but to control the PC piece Sony will have to exert some control over what goes onto the PC when it is shipped. Thats is why it must have some control. It doesent have to make the PCs itself but there has to be some involvement otherwise the ecosystem offering starts to break down.

Professionally created content plays on all devices, so whether pros use Macs, Sony PCs, Dell PCs or Avid stations make no difference to any ecosystem beyond some branding opportunity. Apple has been using that branding opportunity fairly effectively, but Sony uses a commodity OS, so it does not have the same opportunity.

User generated content is mostly limited to office software, storing and editing photos and videos. The most popular is Instagram and the most sophisticated is Photoshop. Neither of these help Sony form an ecosystem through its PC division. Sony would be better off pushing its video editing software, with its core of already satisfied users, as part of an ecosystem that runs on any device, rather than selling commodity boxes running commodity OS inside a nicely designed box. Tying Playstation, connected TVs, Blu-Ray players and HIFis together through apps running on Windows, iOS and Android are far better basis for an ecosystem than holding on to low margin PCs.