Oddly, I *had* Perl on my N800 with the July OS2007 update, but I recently installed the latest OS2007 firmware and it's vanished. Likely it's not installed by default but is a dependency of some app. It's good to hear it is in OS2008 by default.

Be forewarned: The perl interpreter is apparently the default one for Debian-based distros, and thus will only have standard Perl modules (and maybe not all of the them). In particular, there will be no DBI (thus, no SQLite access) or any graphic library bindings like PerlGTK. Theoretically, they could be compiled with Scratchbox, but I don't think anyone has tried. I had intended on trying myself, but my tuits lately have all been square.