Dual node vs "Reliable IP" Architecture

[Pete Kruckenberg <pete () kruckenberg com>]

http://www.nspllc.com/New%20Pages/Reliable%20IP%20Nodes.pdf

Argues that by going from a dual-router POP design to a
single redundant router configuration, I can reduce annual
downtime costs by 93% (?) and reduce CAPEX and OPEX (seems
logical).

Also mentions that the single redundant router can get
closer to the ever-elusive 5-9's.

Anyone doing this in their network? Is there validity in the
claims in this white paper? Anyone looked at the Alcatel
product that apparently funded this paper?

Pete.