IBM's Cell processor looks like a candidate to power numerous infrastructure appliances
The multi-core attributes of Cell, plus the proprietary 'Synergistic Processing Elements' (SPEs) for the chips provide the means to exploit parallelism and finely tune each box for the specific functionality at hand. The fact that these specialized and closed functional components (hardware, software, integration, optimization) require much less set-up and life-time support, appeals to architects (if not integrators). They may also help on energy use and heat-dispersion issues as well.