There's been a few posts about the upcoming namespace support in PHP from different bloggers in the community including:

• A post on the Stubbes blog by Frank Kleine and his discoveries of how the "use" keyword needs to be used in your applications
• A follow-up post from Frank as well correcting some of the problems in his first examples
• Some opinions from Richard Heyes on how useful they seem to him
• Brian Moon's comments on the level of traffic that the namespace discussion has been getting on the php.internals mailing list.

Right now there's so many ideas flying around about what namespaces should be and how they should be implemented that it'll be interesting to see which ideas finally come out on top.