Last year VMware announced VXLAN, which will attempt to address the location-binding challenge that IP address schemes are used for currently. The idea behind VXLAN's is to make the virtual machine accessible from anywhere instead of a specific location, without having to change the IP address. To paraphrase Steve Herrod from VMware, he described it as being a similar challenge that telephony had that traditionally the phone number couldn't follow you around. Now cell networks allow for the number to go where ever you do and the location of the phone really doesn't matter now.
Once we are able to move virtual machines around without having to re-IP address them, I see this as a great next step that has significant impact to cloud deployments as well as disaster recovery. But how will this impact a centralized monitoring solution?