Wow, I forgot that even existed. Here I was thinking of every switch, firewall, and routing product they've done except this line. I guess it doesn't help that I've never had a reason to touch one as every carrier grade router I've used has been Juniper. I wonder why they went with a whole new platform based on QNX when you don't benefit from a realtime OS if all the packets are moved in hardware? Must be something about the pain of upgrades and reloads on other Cisco product lines and somehow QNX can minimize these outage windows.
I've still yet to meet someone who actually prefers Cisco over Juniper MX. I wonder who is buying these?