There's a new release of Exupery now on SqueakMap. Exupery
is a bytecode to machine code compiler for Squeak. It currently
only runs on Linux/x86.

This release is reliable enough to play with. It compiles the
same amount of code as the previous release but hardly crashes
anymore. 

Instructions for installing it are here:

  http://minnow.cc.gatech.edu/squeak/Exupery

Here's some benchmarks comparing Exupery's performance with the 
interpreter.

 arithmaticLoopBenchmark 1466     compiled  91     ratio: 16.110
 bytecodeBenchmark       2258     compiled 444     ratio:  5.086
 sendBenchmark           1655     compiled 612     ratio:  2.704
 compilerBenchmark        763     compiled 707     ratio:  1.079
 Cumulative Time         1429.865 compiled 363.621 ratio   3.932

Bryce