I've installed Gnome3 on Ubuntu 11.04 via the ppa and it mostly works fine. However I am a bit unhappy about the notification panel being invisible. I understand the general concept of notifications being shown for a short amount of time and then you can find them again in the unobstrusive notification tray. However this neglects the use case that I did not notice the on-screen notification (e.g. talking on the phone, or having left the computer for a second or two).
So if I miss a notification I will have to check the tray to see it. Basically this means that I am checking the tray all the time for missing notifications which is really counter-productive.
Is there some way to get the notification tray to stay visible? Or to have it in the top-panel? Or any other means to see "notifications pending"?