Ilia Alshanetsky takes a look at type hinting in PHP (he's made some previous comments on the matter) and some of the community's comments about its suggested inclusion in the language.

There has been a lot of comments both on this blog and the internals list. There seems to be a fairly large group of core developers who like the idea as well as surpassingly large support base on the user level too (wow, didn't think that this many people want type hinting).

Despite some of the nay-sayers who don't think it's a good idea, the majority seems to approve and work has already been done on a new patch you can apply to your systems. He includes the Changelog information as well as links to the patch (txt) and a test suite (bz2).