Name the @ Symbol

What is the @ symbol called in e-mail addresses?: "We've checked with several sources, including the Dictionary for Writers and Editors and the Oxford English Dictionary. There is actually no correct designation for this symbol, @." That's unacceptable. First of all, the @ symbol deserves it's own key on a keyboard (I use it way more than the 2 key). And my sources tell me it has a name in other languages besides English so let's do this thing. Name the @!