Linksys and Trend Micro are prepping home routers bundled with security software. Smart move or unnecessary layer of security?

Trend Micro Router Develops Router Anti-virus - Enterprise IT Planet

Trend Micro's new software for routers, dubbed Home Network Defender, will initially work on a few models from Cisco Systems Inc's Linksys division. New routers will be sold bundled with 30-day trial subscriptions to the service, while Linksys customers who have already bought those models can download trial software over the Internet.

...Each subscription to Home Network Defender, which sells for $60 a year, includes subscriptions for Trend's traditional PC anti-virus software for four machines.