Guess there's no point resting on one's laurels, which is why word has it that Apple is already ready to work on Mac OS X 10.7, thanks to the discovery of a new database entry for the open source "launchd" framework that is behind the booting of Mac OS X references, where "11A47" is accompanied by a new error message.

Judging by Apple's numbering scheme in the past, the numerical prefix of a Mac OS X build will determine the version number, and in this case 11A47 conveniently points toward the next version of the operating system, Mac OS X 10.7.