[ale] Linux POS system?

[jbayes at spoo.mminternet.com (Joe Bayes)]

I'm looking for a Linux-based POS system to be used in a bike co-op
for tracking inventory and such. I've found about 200 of them, none of
which seem to have had any activity in the last three years or so. 

Does anybody have experience with such systems?

Bonus points if the system is free, and more bonus points if it's
fairly popular (and thus likely to have a large user base).

Thanks,
Joe

--
Joe Bayes -- jbayes at spoo.mminternet.com