If you've been reading TUAW for any length of time, you've probably seen our posts about Square. This startup had the idea to develop a free credit card reader that could be used with an iPhone (later expanded to many phone models) or iPad, and provide a card authorization service with low enough rates that basically anyone in the U.S. could accept credit cards.
The service works very well; I've moved from a traditional credit card authorization service to Square, and I'm saving money in the process. However, an informal Twitter poll showed that there are still a number of people (including our very own Dave Caolo) who are still patiently waiting for their readers over a year after signing up. Not
