Sebastian Bergamnn spotlights one of the features of the upcoming version of PHPUnit (a unit testing software suite for PHP) - the Selenium integration. Specifically, he looks at improvements made to the SeleniumTestCase extension.
Probably the most important improvement to SeleniumTestCase is the fact that you can now run each test using a set of browsers instead of just one browser. [...] Other improvements to SeleniumTestCase include more robust error handling and better error messages.
To illustrate the "run each test in multiple browsers" feature, Sebastian includes the code for a test that runs three times, once for three different types of browsers - IE, Safari, and Firefox.