After digging around I saw a small blog post on Blip's blog (nothing on Feedburner's) that announces the new RSS integration:
Apparently the new integration allows Blip's users to integrate their Feedburner feeds into the control panel at Blip. The feeds can be one-click resynced from within your preferences and if you have more than one Feedburner account they allow you to sign out one account and sign into another without leaving the site.
The blog post promises deeper integration as time goes by.
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