If these reports turn out to be correct the routing software could turn email back into a viable option, at least for Cisco hardware. At first.
While there's no comment from Cisco on product plans, what we do know is that Michael Thomas, a Cisco employee, and Jim Fenton have co-authored "draft-fenton-indentified-mail-00". That's available on the IETF draft repository, which you can find here.
This is an interesting draft which rather than being anti-viral is connected with spam-phishing attacks.
We understand that at the forthcoming IEFT (MASS), it's likely there will be a working group formed in a bid to standardise this technology.
Go Cisco, go! µ