You can tell the Java/Linux thing has finally taken off when more has
happened than is announced on this mailing list.
While browsing the ever-helpful Java Linux News
http://www.w3com.com/paulcho/javalinux/
I found a link to another JIT for Linux, shuJIT, at
http://www.shudo.net/jit/
Executive summary: also works with FreeBSD, says performance is about
like TYA, interested in working eventually with thread migration. The
author is in a research group working on "OpenJIT", a project to make
the JIT itself be controllable by Java to make it easier to tune.
Looks quite interesting.