You may be asking "What is the PlayStation Development Suite" well it's C# based API for writing games, fast games. If you read this site that could be something of interest to you!
It lets you publish to PlayStation Vita and PlayStation Endorsed Android Devices. The API (from my quick look) seems pretty good - low level vertex buffer access and shaders - as well as a high level sprite engine.
So if you ever wanted to make a game and perhaps release it for sale - this might be worth a look!
I'm playing with it now and I may post again in the future about how I'm finding it! (Also the documentation is really quite good!)
I've made a linkedin group here.