According to the GBE website:
"Genome Biology and Evolution publishes evolutionary advances at the forefront of genomics. Papers considered for publication report novel findings in the field of evolutionary biology that concern natural genome diversity, population genomics, the structure, function, organisation and expression of genomes, comparative genomics, proteomics, and environmental genomic interactions. Major evolutionary insights from the fields of computational biology, structural biology, developmental biology, and cell biology are also considered, as are theoretical advances in the field of genome evolution."
It is an on-line only, Open Access journal published for SMBE by Oxford Journals (who also publish MBE). See here for more information. Congratulations and good luck to Bill, Takashi and the Editorial Board! I had better read the instructions to authors and then get busy preparing my first submission (of what will likely be many).