Greg Beaver has posted an update one some of the things he's been working on in the realm of his projects - Pyrus, PEAR2 and code coverage for phpt-based tests.
In any case, now that work on ext/phar has shifted primarily to maintenance mode, and namespaces are finally ancient history, I've shifted all of my coding energy to getting Pyrus, PEAR's next-generation installer, ready to ship.
Pyrus is the PEAR installer as rewritten for the next major PHP release (5.3) and uses a lot of the new features it offers (including full archive support, SQLite 3, combined configuration files and several new developer-centric additions). He also includes a sample bit of code that he worked up to run code coverage reports against the PEAR packages. He includes links to three different examples of the report's output.