I've put my thoughts together on this for my latest Service Provider Views column, which runs on TMCnet. It's running now, and you can read it here.
You don't have to look far for coverage of Cisco's announcement in the press and blogs, and I'll just steer you to one from here in Canada - ITBusiness.ca - where I contributed some commentary. Just as the carriers face a lot of risk adapting to new technologies and changing customer preferences, Cisco has its own set of challenges, some self-created, and others stemming from general market conditions.
Nobody has a free ride here, so it's an interesting story that goes way beyond the current state of router technology. I'm sure I'll be revisiting this theme soon, but would love to hear your thoughts any time.