From the official Press Release, to quote: SCE to Provide Strong Support to Content Developers for PlayStation Suite With the Distribution of the Newly Developed Content Starting Next Spring
TOKYO, Sept. 14, 2011 - Sony Computer Entertainment Inc. (SCEI) today announced that it will offer software development kits (SDK) for PlayStation Suite (PS Suite), called "PlayStation Suite SDK," *1 for content developers starting this November. PS Suite is an initiative solution to deliver the world of PlayStation to Android based portable devices.
Through PS Suite SDK, content developers can create content for PlayStation Certified (PS Certified) devices, hardware certified through the PS Suite license program, as well as for PlayStation Vita (PS Vita).
Supporting C# as the programming language, PS Suite SDK can run programs developed in C# on virtual machine equipped on both PS Certified devices and PS Vita.
By supporting development for multiple devices and by adopting libraries to create a variety of content not only limited to games, PS Suite SDK will not only help developers save their cost in creating new content but also allow them to efficiently create their content on one SDK and without having to create on several different SDKs.
Through PS Suite SDK, SCE will provide to game developers and publishers the potential to further expand their business opportunities to Android based portable devices.
In addition, SCE can approach to a wider range of content developers, non-gaming developers and individual programmers. The detailed information of PS Suite SDK, including how to download, will be announced via a dedicated PS Suite section on SCE's official website.
As of September 15th, 2011, PS Certified device line-up includes Sony Ericsson Mobile Communications AB's Xperia PLAY, Sony Corporation's "Sony Tablet" S, "Sony Tablet" P, and SCE will continue to further accelerate the expansion of PS Certified devices in addition to the current hardware line-up.
Furthermore, SCE will provide a variety of content towards these PS Certified devices from end October through PlayStation Store*2 on PlaySation Network, starting with original PlayStation games (PS one classics).
The service will start in nine countries including Japan, United States, Canada, United Kingdom, France, Germany, Italy, Spain, and Australia and with more countries to follow. In next spring, SCE will enhance the PS Store for PS Certified devices and provide content created by PS Suite SDK, further prevailing the world of PS Suite.
Through PS Suite, SCE will deploy various measures to support content developers in their business for rapidly prevailing Android based portable devices and will expand the PlayStation entertainment experience on an open operating system.
*1 Software Development Kit is a set of development tools and software libraries. Developers are able to obtain this SDK by signing a license agreement with SCE and by purchasing tool products.
*2 Users can download vast digital content including games through PS Store for PS Network for PS3, PSP, PS Vita and PS Certified devices.
*3 Number of content differ by regions.
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You CAN run the apps (either your own or demo apps supplied with the kit) on any Vita but ... not directly but via supplied launch app Called PS Suite Dev and it will indeed guard what and where exactly are you running.
Also - once the beta will end you'll be unable to do so without paying the yearly fee of $99 which though (comparing to usual dev kit prices) is still peanuts if you're really interested in developing and you can actully even get your final product(s) published (and sold) on PS store - sweet, isn't it?
Theoretically - as long as Sony will not block it in some way (or link your kit to your particular Vita) you should be still able to distribute the SLN project to others to use it via Dev app but they'd need to purchase the $99 license as well to be able to run it, but there is no way of producing the "native" signed Vita app with this directly.