I think there are still too many major problems in Hardy to use it. And this is even at the 8.04.1 revision.
I tried to get a computer I am setting up to work on a dialup account on Hardy and the system would connect using gnome-ppp on the very initial/first try and I could surf the net just fine.
But all subsequent attempt to connect and surf the net were met with the "Firefox running in offline mode" message. According to what I can see, I think the computer is connecting to the ISP just fine but something in Hardy, perhaps a flaw in Firefox, is preventing the use of the internet.
However, strangely enough, I can put the ("older" & I would think not as improved) Gutsy version of Ubuntu on the machine and the computer dials up to the ISP and I can surf the net EVERY time without fail.
Somebody really needs to fix this sort of thing FAST. I really believe that stuff like this is an embarrassment to Ubuntu (I know that stuff like this keeps me from recommending Ubuntu more than I do).
And I am not looking for some juryrig workaround fix for this. I want an O/S that I can use. I don't want to be in the business of spending all of my time fixing it.
And yes, I have reported this as a bug.