Beginning tomorrow (4/29/08) and lasting for a one week period, Coldplay will offer at no cost on their website the first single on their new album. On May 6th, the single will be available as a conventional "pay to download" track.
Why only a one week free-trial? The free-download period coincides with the beginning of radio-release. Isn't the first week likely to be the week when demand for the single is highest?