URI::Template 0.08_02 should be hitting CPAN shortly. This release conforms to the latest uri-template spec released this month.
I've always been interested in portable/generalized test suites. Sam Ruby mentions that he'd like to see feedparser's test suite generalized. This would be great for someone who would like to ensure their feed parser handle a variety of well-formed and ill-formed feed data that you might find anywhere on the web.
Similarly, I've decided to serialize some tests, currently just the ones outlined in the spec, as a JSON file. A simple driver script will go through all of the JSON files in the dist and run the tests. This means we (the royal we? :) could develop a generic test suite for URI Template implementers.