We were in the same issue to choose the new logo. Had a votation and from a list with 94 logos we ended with the most simple and compact.
Today, I think everyone agrees that the logo is good enought. I really think we need to drop "enterprise" so what about just dropping it? As simple enought as web2py is. I mean: lets drop it and leave just: Web2py web framework. When a new phrase for tagline come up here naturally. It can be included.