I will report approx weekly here. I have written a cURL, DOM and SimpleXML based browser instead of the sockets-based, PHP4-compatible Simpletest browser. This lets us inherit from unit_tester.php instead of web_tester.php, removing lots of code. I strive to finish it within a few days. Things you can help include making Simpletest to always start with a clean state, a new set of prefixed tables, see the issue for more.