Sony omitted OtherOS support with the PS3 Slim hardware revision with seemingly no technical justification and later removed it from existing consoles.

Afterwards several researchers investigated how to execute third-party code on the device and succeeded. [1] In response Sony did attempt to prosecute several people under DMCA and similar claims [2] and were more successful with certain defendants in some countries versus others.

[1] https://media.ccc.de/v/27c3-4087-en-console_hacking_2010 [2] https://en.wikipedia.org/wiki/Sony_Computer_Entertainment_Am...