A report (free to view but registration required) in The Scientist describes the introduction by two US Senators of an amendment to the Economic Stimulus bill currently being debated in Congress which is apparently intended to better protect federally-funded NIH (National Institutes of Health) biomedical research from potential bias.
Medical writers from the UK, USA and Australia have developed a checklist that they hope Journal Editors might ask authors to complete to deter unacknowledged or inappropriate writing assistance (or 'ghostwriting'). It has been published in PLoS Medicine (doi: 10.1371/journal.pmed.1000023) with a debate on ghostwriting from editors and researchers.
I should declare my interest, in that I am one of the authors (and definitely not a ghost)!
The Journal of Biology (published by BioMedCentral) is changing its peer-review process, apparently in response to reviewers and authors who disliked their previous system of sending revised papers back to reviewers for further comment which one described as 'the re-review nightmare'.
You can get more details from http://jbiol.com/content/8/1/1.