Early in this year there was very interesting post @ news.php.net:
http://news.php.net/php.internals/35562
Somehow, this is very cool feature that can help PHP be a better OOP language then ever. This is damn cool, but are php’s team going to implement it in the next few years ?
Is good to think, think and at last implement features as currently the team is releasing the new versions (5.3 & 6.0), but the developers want abit more from their favorite dev language 
Also, if you research over the net, many, many, many php developers tries to implement different code reuse patterns similar to Mixins (maybe some (e)RoR fans ), so I think that this is enough Proof of concept for the PHP team – we need code reusability!
Here is a longer example/RFC about Traits:
