This could be worth a look. From the press release:

RapidMind and Terra Soft announced today that they have teamed up to make application development for the PlayStation?3 easier than ever. As part of an agreement with Sony Computer Entertainment Incorporated, Terra Soft Solutions announced last month the release of Yellow Dog Linux for the PlayStation 3. With the RapidMind Development Platform, developers can easily create applications that will run on the PlayStation 3, as well as other hardware solutions based on the Cell Broadband Engine? (Cell BE).

If you're in Colorado you might also be interested in the Terra Soft Solutions Cell processor "hack-a-thon". More information available at www.terrasoftsolutions.com and www.rapidmind.net