One of the most frustrating things about the previous version of the iPhone software was password entry. Apple used a masked entry field, which means that instead of seeing what you type, you see a splat. On a computer with a big monitor, that’s understandable; you don’t want someone stealing your password by looking over your shoulder. But on the iPhone, it seemed a bit silly, and it was incredibly hard to know if you’d typed your password properly.
But with iPhone 2.0, things have changed. It still uses a masked entry field, but now the most-recently typed letter is visible until you type the next character, or for about 2 seconds if that’s the last letter. Oh, mama, that’s an awesome improvement. I will make far fewer errors now! 🙂