Comment 19 for bug 861443

Still no way to set exceptions to proxy settings in the network applet in 12.04.

I would also add that with the previous network settings GUI, we had the possibility to create "profiles" for proxy settings. It was quite useful when you worked regularly at different locations, each with different network proxy... You just had to select the corresponding profile and everything worked. Now you have to change your settings manually each time you move to another location.
Looks like a regression to me :-(