I am happy to announce that a full Java "eco system" has been ported to IOS, the operating system powering the popular Iphone and IPad platform. This includes JIT based compilation, a graphical Swing subsystem and a development toolchain. The aim of this Java "eco system" is to deploy essentially unmodified Java applications on the IPhone and IPad - along with software written in the many other languages emerging on the Java virtual machine platform(JVM), such as Scala & Clojure. The significance is that there are many more existing, free Java applications than exist on the IPhone and IPad today. After all, the mantra of Java has always been "compile once, run anywhere."

Very cool, but the sad part is that unlike most modern desktop systems, on mobile OS's all languages and runtimes other that the ones officially endorsed by the OS maker are probably a pain to use and deploy.

Its sad that you have to jailbreak to use the full capabilities of your own device.