I mean, it doesn't seem reasonable the Cavs would be interested in Amare. They need a more defensive minded guy who will willingly accept his role as 4th big who may not play a lot of nights, and they don't need an egotistical ex-star.
That said, Griffin does have the connection with him from PHX (which may have meant something when the Cavs pursued Marion this summer), and the Cavs will probably add a big at some point. Amare would provide some insurance against Love's bulky back. And despite everything that has happened in New York, Amare has actually been pretty good this year.
I don't think it'll happen, and I wouldn't favor it, unless Love is hurt, but it's one of those things you can't help but think about since it is Amare Stoudemire.
Obviously, no team will trade for him, and so he would only be available after being bought out or outright waived.