I think Krileon is talking about cb concitional because you can trigger some Jquey on edit profile view only with this plug.
Customization of the edit view is a bit hard because if use same layout as the user view. So I have rewrite some div spcific of the http://www.oxalis-scop.fr/index.php/communication-tic/userprofile/nolivier (I want to add microdata) and I style the edit view with long css selector.
You can also use the ajax field editor. With this your user not have to use the edit tabs
