As we saw the iPhone 4's release, a massive bump in screen resolution means that plenty of apps need to be updated to fully take advantage of all those extra pixels, and today has seen a few big name ones get optimized for the new iPad's Retina display. The biggest of those is Amazon's Kindle app, which now promises sharper fonts than ever, along with a few other changes including the ability to switch between books stored on your device and in the cloud. Also getting a Retina-friendly update is Evernote, which offers improved text editing in addition to the display tweak, plus the otherwise unchanged Vimeo, and Weather Pro, which now boasts high-resolution maps. Of course, those are just among the first of many -- we're guessing you won't have to wait too long for most of your favorites to be similarly updated.