The U.S. Patents and Trademarks office's database reveals that Apple has filed a trademark for "Rosetta" on November the 1st, 2005.

The patent filing has the following description:

Computer software, computer code, computer firmware and application tools for testing, converting, programming and executing computer software, computer code and computer applications across software, computer and microprocessor platforms; software technology used for cross-platform computing, software code verification, testing and conversion.

Rosetta is known to be the a dynamic binaey translator that allows Intel versions of Mac OS X to run applications that were compiled only for PowerPC processors. Rosetta, which is based on Transitive's QuickTransit technology, was announced last June, during WWDC 2005 [1], along with the Intel switch strategy.