Link to PC Magazine re Norton current project works here: http://www.pcmag.com/article2/0,2817,2406112,00.asp?obref=obinsite
Section about moving major security functions to the home router is interesting. Has new stuff about Android as well. Some stuff is a work in progress and may never come to fruition, but as one would apparently have to buy a new router with Norton pre-installed…
Outside of the router function, I didn’t see anything in that article that isn’t already implemented in avast!. 
Nice link to the Avast! blog. The latest supercomputer being built in the USA by Cray, Inc. also uses the same strategy, that of utilizing the GPU cores of video cards, to increase computing power and processing speed. This strategy utilizes the core fact that GPU’s basically have considerable unused processing capacity most of the time, so why not use that? As an example, have a 512 MB PCI card and, the most use of that memory is 68 MB, indicating the processor is basically idle most of the time.
Cray computer is using, or soon will be using, hundreds of Nvidia GPU’s to assist hundreds of four or eight-core CPU’s.
As for the router technology, certainly it is a new and logical direction for Avast! to think about. Need to compete, you know, as well as providing much needed centralised protection for all devices connected to the home network.