I've released my first module to CPAN a few days ago: Test::GreaterVersion.
It checks if the version of your module in development is greater than the one defined in the installed module or the one on CPAN. These tests are supposed to be used in some scripted process that actually installs or releases your development version if the tests succeed.
This module was inspired by brian d foy's talk 'Managing Complexity with Module::Release' at the Nordic Perl Workshop in 2006.
Comments are most welcome. This is my first trip to CPAN, I expect it to be a ride full of excitement