My pleasure!
We've always been able to send acorns to other members, but never directly in response to a contribution,and never in a public manner. This achieves both.
When you see a post that has been tipped acorns, you know that it's a really special post.
You can tip on any item that also has the thumbs feature. That means image sets, photos and comments in the database, ideas, blog entries and everything else.