You can see the platform of this product at this link:
Our firm has rolled out a new product based on these sun cobalt cubes. I was at an exec demonstration and it is quite slick. We offer a turn key product with a simple gui to manage sites.
The os is sun/lx and apparently the units are moving well. Spoke with the design mgr of the program and the new version will be on redhat (hardened) exclusively. First time I have really seen a product offering from sun that pushes the linux in our company.
I can't yet disclose the details since it has not yet been prepped by the legal/mktg people but these little cubies offer great promise.
I guess sun is serious about linux at last, at least at the lower end of their hardware lineup.