There might be emergent funnels that you didn't instrument, but appear after seeing an app in the wild. You also sometimes get funnels that emerge off of deep-link referrals that you didn't predict for.

Anyhow: this is super smart, and having been on the side of the table where we were trying to get Omniture to do things like this, I'd much prefer a light and agile product like this than that behemoth.