Quick tip for making things potentially more bearable. If you don't like the new round avatar, just make the background a transparency and upload it as a .png.
pays to be a slap head on G+
This works particularly well with logos and simple icons in Business Pages, or if you happen to be bald.
I'll do something cunning and arty with my profile when I get a chance. Maybe stick my head in a thought bubble or something.
I'm not one to moan when free channels move the goal posts, but it's really not very pretty.