Everyone is excited by the new Bento heads. They are pretty neat. I am also excited about Bento Wings. I have a collection of prim/sculpty wings in my inventory. Some are way gorgeous. But, they are mostly just there, when worn. Project Bento is going to change that. We will be able to animate the Bento Wings in ways not before possible.
Damien Fate has a Bento Wings Kit out. See: FATEplay – Animated Wings Template. This is one of those Full Perm with an agreement type things where all the mesh and animation stuff is done. You only need to supply textures.
These show some of what can be done with Bento Wings. I expect some really impressive wings to start appearing.