[aktau]

Objective-C? That seems like an odd choice, did they want to attract iOS developers? (I know someone ported the mobile game Angry Birds to PSP at some point). Do you have more information about this?

[pjmlp]

I was partially wrong, it wasn't for the PSP, rather something else,

https://apple.slashdot.org/story/10/11/25/0432204/Sony-Adopt...

https://www.slashgear.com/sony-snap-connected-device-app-fra...

And for completness here are some articles about the C# SDK,

https://venturebeat.com/games/ps-vita-sdk/

https://www.codeproject.com/Articles/535325/Hello-World-on-t...