I had a little look at the beta and checked if my module worked under the new version.

I'm wondering whether the USPS check code built into /admin/modules.php line 30-32 should be moved to the usps::check() method.

It's not really a problem, but since USPS is no longer pre-installed I thought it would make more sense.

I was using modules.php to add some checking related to the modified version. Now I just realised the modules check() method could be used instead to display warning/error html before rendering the table of shipping modules.