On his blog today, Andrei Zmievski points out an article (based on an interview) with him that Linux.com has posted:

Linux.com published an article based on the interview that Bruce Byfield did with me at the Vancouver PHP Conference. It's a pretty good overview of the Unicode effort in PHP 6, albeit with a couple of minor inaccuracies.

The article (by Bruce Byfield) focuses on the upcoming Unicode support that PHP6 will have to offer and what kind of functionality this will enhance PHP with (working with Unicode characters, internationalization, etc).