One of the, many, awesome new features in Android 4.1 Jelly Bean, is the keyboard. While sharing appearance with it's predecessor, where the Jelly Bean keyboard excels over Ice Cream Sandwich, is in its built in prediction engine. Predictions when done correctly -- see the Android Central favorite, Swiftkey, for a striking example -- they are an incredibly useful tool.
Thanks to a developer going by the handle of Beansoft, this new prediction filled keyboard has now been ported for use on ICS devices running 4.0.3 and above. Simply known as Jelly Bean Keyboard, the early alpha build is out there in the Google Play Store now. As this is an early build, a big old bucket of bugs are likely, but for the most part some users seem to be enjoying reasonable success.
Currently known limitations surround languages, in that full next word prediction and auto correction is only currently supported for English. Additionally, only English, German, French, Spanish, Portugese (Brazil) and Russian is supported at this time. The user dictionary also doesn't work on ICS, and trying will push it into a force close.
To use once installed, don't forget to head into the "Language and Input" settings menu, and select Jelly Bean Keyboard as your default input. If you decide to take the plunge, hit up the comments below and let us know how you get along.
Download: Jelly Bean Keyboard