Yahoo open sources MVC framework Mojito
Building on YUI3 as a toolkit also gives allows applications to be monolingual or multilingual if the Yahoo internationalisation utility and resource bundles are used. Data access is made portable between server and browser by making use of YQL (Yahoo Query Language).
Mojito is an implementation of "Cocktails" an on-line/off-line, multi-device, hosted application platform which was announced in 2011. Cocktails Senior Product Manager Ren Waldura says that the framework doesn't do everything which Yahoo envisaged it should be capable of, such as managing changing runtime contexts or mitigating spikey traffic, but it is because of these challenges that it decided to open source the framework. Yahoo already use the framework for applications such as Livestand and Fantasy Football Premier League.