Thanks for sharing that! I, too, have drooled over Kaleidoscope for ages. But I confess: at the discount rate it's still more expensive than my IDE (Nova). It has a million cool features that alas I don't need. I just want that gorgeous source code diffing, at a lower price point.

(I don't expect you to say "great idea, sir, here's your coupon!". I'm sure you've done your analysis and you're at the price point that works best for you. I'm also not saying it's overpriced, just that it's more than I'm willing to pay for it given the functionality I want from it. This is just in the spirit of friendly user feedback.)