hihi, yes we thought so too, it's very organic in nature and more social network friendly rather than having a email inbox attached to a profile. However we need to improve it a bit from specialized skinning for private messages and filtering.
Sorry the topic got carried away. The feature you're mentioning will be available in our blog app later. Basically you can a blog by entering a URL in your composer, there we can auto-discover the URL like facebook. We still have to study the details of the implementation. Does that answer your question ?