Found the code via http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1267762668/9

Noticed it's not interrupt safe so did a quick-and-dirty sprinkling of volatile keywors and it happens to work

Also limited the FIFO size the 255 (char vs int, for strategic variables) to conserve memory.

See also http://code.google.com/p/alexanderbrevig/downloads/list