I had Kubuntu 10.10 and had all the updates done there before allowing the upgrade to 11.04. Everything went well insofar as the upgrade. Final reboot and voila! Ummmmm....wait a minute....it looks virtually identical to the Kubuntu screen prior to the upgrade. No "Dock" to the left, etc. Outside of some new default applications, doesn't look like I've done anything.
And I don't see anything on startup asking for default desktop.
OK, and I don't know if this has any bearing -- I'm running this under Windows Vista using VMWare player (most recent version). I've allocated 1 Gig for the virtual OS. And it seems "snappy" enough, all things considered.
Is this just considered too underpowered and THAT'S why Unity isn't visible to me. Is there someplace that I have to make a setting to make it happen. Is there some double secret handshake I need? WHAT???