I'm extremely suprised that this is their stance. I'm pressed to find a
technical reason behind such a requirement. The 7000 is a Motorola 68XXX
based system, and the 4500/4700 is a risc based system. There have been
performance tests that have shown that the 45/47 boxes out perform the
7000 boxes. I'd be very interested in hearing Sprints' reasoning on this.