Aside from getting them into the cloud or CDN business, it might also be useful to have a tangible deployment of Apple's enterprise technology, to keep AAPL in the minds of the executive crowd, now that traditional server vendors are dying out (SGI, Sun, etc.)

Beating a few benchmarks on performance, price or power-consumption is usually a good way to break into, or return to, a market.

Apple also has a rabid user base who will gobble up anything they put out.