From the Artemis home page:
Artemis is a free genome viewer and annotation tool that allows visualization of sequence features and the results of analyses within the context of the sequence, and its six-frame translation. Artemis is written in Java, and is available for UNIX, Macintosh and Windows systems. It can read EMBL and GENBANK database entries or sequence in FASTA or raw format. Extra sequence features can be in EMBL, GENBANK or GFF format.
Artemis is not part of the GMOD project, but Artemis does work with Chado (see the Artemis-Chado Integration Tutorial), and the Artemis group is working closely with Apollo developers on Gbol. Apollo is GMOD's official genome annotation editor.