I've been working on this off & on for the past few months. But just last weekend I made a big push to finish up a few things and get it out into the wild as an Alpha release. As of right now it's limited to only comparing two database tables at a time, and it'll only work when it can find a common primary key between those two tables. But other than that, it's a pretty effective little database comparison tool. I'm working on improving it every day and in fact I've released a new version every day since Saturday.