After considering all the risks of using GNOME 3 in Ubuntu 11.04, I installed GNOME 3 via PPA. Fortunately, my system is working fine after the installation, but following are three issues which I want to fix.
- Evolution is still not updated to 3.0, thus it is using NotifyOSD to notify about new mails.
- Empathy is updated to 3.0 but is not using modern GNOME 3 notification system.
- Ubuntu still uses Old network manager instead of that of GNOME 3, thus, it is not integrated well with entire desktop.
Also, I wanted to know that how can I make Ubuntu 11.04 completely stock GNOME 3, including all the default applications that it is using.
If you want a 100% stock GNOME3 desktop, then I guess it won't be possible right now on Ubuntu. You have 2 options:
1) Live with those minor issues for a few more months, then move to Ubuntu 11.10 Oneiric where you'll have stock GNOME3 + Shell as an option.
2) Change to another distro such as Fedora until Oneiric is ready with its thing.
BTW, why is notify-osd coming up? In my case the GNOME shell notifications come with Evolutions. Are you sure the notifications are notify-osd ones? Do they come at the top right or bottom right?
You can install Evolution 3.0 by two methods
By adding the debian experimental repository
deb http://ftp.debian.org/debian experimental main
As for the other two, its difficult to get as Ubuntu 11.04 is built on top of 2.32. I have not compiled Gnome3 from source. Perhaps you could try that and see if it gives better result.