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I was wondering, is there any way to get an on-screen notification when a new email is received, like in Google talk.
That type of program is known as biff, so that might help in searching.
Here is a biff that works on Gnome for Gmail: cGmail
there are a lot of applications that can do it. try it all and see what works for you the best.
my recommendation is:
if you are using unity, unity mail
if you are using gnome shell, mailnag
There are various applications in the software centre that can do this. Search for "gmail", and then check your list of options, and choose one.
I have tried gmail-watcher and others, and all pretty much do the same job, and do it well :).
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