If Skitch is one of your favorite sketching and annotation apps, we hope you're using a Mac, because it's saying goodbye to Android, iOS and Windows on January 22nd. Evernote isn't exactly switching the app off, so you'll still be able to use it after that date. However, since it will no longer be updated, and it won't be available for download on those platforms anymore, they're bound to stop working in the future. The company says they've decided to kill those versions, because you can find "nearly identical annotation functionality" on the main Evernote app. It's unclear why Skitch for Mac will live on, but we're sure avid users aren't complaining.