The good news is that Terminator Salvation, a movie that doesn't look too bad (I swear!) will be released to IMAX theaters. The bad news is that it wasn't shot on IMAX film originally.
Good news, everyone! Terminator 4 might not suck. I can't know for sure without actually seeing the film, but I do have a good feeling about it, having flown to New Mexico a few months back to explore various hot, dusty sets and meet cast and crew.