I just read that closures are being added to C++ [PDF link].
A note to Sun: you know your language is falling embarrassingly behind if the C++ standards committee can move more nimbly than you can!
(For those who aren't already sick of reading about closures in Java, Neal Gafter is developing a prototype Java compiler that supports closures, and he even has a JSR proposal drafted and ready to go.)
Ha! We've had closures in JavaScript for years. ! ;-)