Apple has one due to come out this year called Gianduia ... and that's about all I know about it. People I trust who know more are absolutely raving about it, but, typically, details are scarce on the ground. Am very interested to see what arrives, though.
First, Apple regularly spreads disinformation to its employees to find out leaks. Most of the company was shocked that the iPod came out.
Second, that's the most American-unfriendly name I've ever seen for a product. Sure, gianduia is the name of a chocolate with hazelnut paste, but I'd be interested to see what the public name of such a product would be.
It's not disinformation: it was announced at WOWODC in a demo given by Apple staff. It's just under NDA, so public details are very thin on the ground.
Wolf Rentzsch tweeted about it after a demo, though:
Blown away by gianduia. Cappuccino, SproutCore and JavascriptMVC have serious competition. Serious.http://twitter.com/rentzsch/status/2060613851
I can tell you its not anything new, and it's been around at Apple for a while now. It's in use right now on several live Apple properties. When and if it will be released in any usable form has yet to be made clear though.