Campaign slogans and phrases like Reagan's "Are you better off than you were 4 years ago" are pretty common. Romnesia is a very clever way to get people to start talking about the contradictory views Romney has taken on _everything_. It's smarter too because it can be applied to multiple issues and if Romney missteps they have that saying waiting for him. It's less 'name calling' than saying 'flip flopping', which was the '04 republican mantra.
I thought "Romnesia" was pretty clever too. My wife was a part of the conversation with my neighbor and later she asked what "names" he was referring to. When I said "Romnesia", she sad "that's not name calling". She's right, it's clever marketing. I wouldn't be surprised if Obama uses it tonight. That said, I'd imagine that the Romney camp has a clever response in tow, just for such an occasion. Should be an interesting exchange tonight. A lot on the line.