Just to elaborate slightly on Corions comments about the Sharp, and the original Installing Perl on the Sharp Zaurus PDA thread, perl 5.8.0 runs nicely on the latest generation of Sharp Zaurus. I've also got DBI and DBD::SQLite running on mine.

ipk packages are available for perl 5.8.0 and DBI from www.elsix.org, I compiled DBD::SQLite from source using the zgcc compiler but will be putting together an ipk package shortly. As well as running on Zauri, these packages should theoretically run on any sufficiently high spec PDA running embedded linux: e.g. a reflashed iPaq.

(Note for anyone having trouble installing these packages: run ipkg from the command line, not the gui, and install to external storage (sd card or microdrive))