It seems that Google is trying to standardize the new interface across AdWords. Aside from cosmetic differences, it does not seem to have any new features except for a newBudget tab. See screen shots below:
I just noticed this link today in my MCC account:
Link To New Google MCC Account Interface
New Google AdWords MMC Performance Tab
New Google AdWords MMC Budget Tab
Is the new AdWords My Client Center interface active in your account? Can you spot any other differences?
