A finally lost my patience waiting for LWJGL to linux and implemented something that could be the base for such a port.
You can find a tarball athttp://odense.kollegienet.dk/~naur/lwjgl13112002linux.tar.bz2
with a current CVS checkout modded with a linux/ directory under src/native. In that directory you'll find the most basic files to get the test program running (the famous rotating square test ripped from the lwjgl skeleton code on their site with a small glitch fixed). The test program is in the src/java/ dir for your convenience. In the bin directory you will find a precompiled liblwjgl.so if you only want to see lwjgl in action on linux.
On my redhat 8 system cd'ing to the src/native/linux and typing make is enough to compile the library, in which case you only need to copy bin/liblwjgl.so to the java ext dir (i.e. /usr/java/j2sdk1.4.1_01/jre/lib/i386) and compile/run the test program.
Fullscreen mode switching and windowed mode gl works, but everything else doesn't :-) That includes the Sys timer, Math ops, GL extentions and all input. So it definately lacks some work but the basic is there to build upon.
Give it a whirl and tell me what you think.