Here is various information on the Raspberry Pi.
http://www.raspberrypi.org/
http://www.perlmonks.org/?node_id=753416
And while not directly related to the Raspberry Pi, I will need to look at Perl IPC in order to migrate the router switching program over.
http://perldoc.perl.org/perlipc.html
http://search.cpan.org/~andya/IPC-ShareLite-0.17/lib/IPC/ShareLite.pm