Jeff Rubinoff from Sun has passed along a link to a developer blog they're hosting covering the development of their NetBeans for PHP project's latest advancements.
We at Sun have been working on a PHP editor in NetBeans IDE. The first full-featured version will go out in our 6.5 release, scheduled for November, but it's available for use already in our daily builds. [...] We're not PHP developers, strictly speaking, we're developing a tool for PHP developers. However, we are trying to get as much feedback from PHP developers as possible.