With over 50 million note-taking users, Evernote has a lot of traffic on its hands -- enough so that the company is now rate-limiting third-party software that relies on its API. As of today, new apps can only sync a certain amount of information with Evernote in a given hour. While the caps aren't clearly defined and are likely to change, Evernote will start throttling all existing apps on November 1st. This isn't necessarily th
