Microsoft frequently change codenames while developing products, so a change from ‘Kojax to Kirana’ happened. Kojax/Kirana is one of Microsoft’s ever-expanding family of “write once/deploy everywhere” technologies. It’ll combine a new development/publishing model with an electronic “wallet.” Developers can write lightweight Kojax/Kirana applets in JavaScript, right on their cell phones. Consumers will be able to purchase and pay for these applets using the aforementioned electronic wallet. Developers will use a Kojax/Kirana software development kit (SDK) to create apps, which they will upload to a repository (hosted, most likely, in Microsoft’s Azure cloud).

More info: All About Microsoft