I'm going to stand by my 'Too soon to predict' statement ;)
Seriously. It's been 11 days. Most of the theme devs I know have said "I'll need to read more into it." but all agree it looks pretty cool.
If I was going to be an early adopter I'd go with filters or shortcodes for now.
The questions no one knows the answer to yet:
Should this be incorporated in your post content (i.e. the stuff you write)?
Should this be done via custom fields?
How could it best be automated?
Can a theme just pick up author info etc and automate the simple/standard stuff?