Federico Viticci, writing for Macstories:
More importantly, I’m baffled when I see people really getting angry because of a standalone app that was always meant to be that way. So here’s a tip for these people: next time you’re about to send a tweet to a developer, claiming that he promised a free and universal update and he’s now “stealing your money”, do your homework. Because if I can’t argue on economics, I sure think I’m pretty good at Google Search, which brought me to this page (screenshot). If I hear anyone complaining about paying $2.99 for Tweetbot for iPad, then we can't be friends anymore.