infrastructure has little to do with bursting to cloud
It's all about the apps and if they can support it.
e.g. it is a stupid idea to scale an application that uses a database by adding web servers in a public cloud and having them connect to a DB over a WAN connection back at the data center.
and most apps (even ones being developed right now) don't support fancy bursting, developers have a hard enough time figuring out multi threading and removing single points of failure from application design. Bursting to cloud will remain a pipe dream for the vast majority for some time to come.
(spoken as someone who has worked closely with developers working on web-based apps for the past 13 years at several companies of various state/scale)
Biting the hand that feeds IT
