Today on the SitePoint PHP blog Troels Knak-Nielsen reminds the community about a "one-stop resource" that they can use to keep up to date on some of the latest happenings with the PHP language, the PHP.net wiki.
Since March, there has been a wiki at wiki.php.net. The most interesting section is probably wiki.php.net/rfc, which - as the name implies - contains RFC's for improvements of the language. I've rambled on about closures and lambdas before, but as you can see, there is now an accepted patch. Whether it'll make it into 5.3 is unlikely at this point, but it looks like it'll at least be coming with 5.4 and/or 6.0.