I've started to build a new, JavaScript based interface to CPAN. It uses the MetaCPAN API as its back-end. It is quite at the beginning, but you might already want to take a look at it and give suggestions.

One of the reasons to build this is to provide material for the Web Application Development course I am offering at YAPC::EU. This is a single-page application using jQuery, Handlebars and Kube.

Another reason is to provide a playground for myself and for others to create potentially interesting pages based on the MetaCPAN data that later can be incorporated into MetaCPAN. For example I've added a page that list the most recently uploaded modules without a license in the META fields. If someone is looking for low-hanging fruits for sending pull-requests, this might be a good source for them.

There is also a list of recommended modules categorized on he front page.

The source code is on GitHub in case you'd like to send suggestions.