[eplanit]

Equally as ill-conceived and/or misdirected as other "language du jour"-specific chips of times past?

http://en.wikipedia.org/wiki/PicoJava

http://en.wikipedia.org/wiki/Jazelle

[pjc50]

Jazelle still exists in newer ARMs; ARM shot its own foot off by keeping it closed, so its use is limited to a few corporates.

[justincormack]

Not really, it has been replaced by ThumbEE https://en.wikipedia.org/wiki/Jazelle#Successor:_ThumbEE