If you've taken to Twitter today, it's likely that you noticed all your Instagram photos that were stored as gallery Cards are gone. Unfortunately, this isn't a temporary glitch; as of today, the photo-sharing service has officially killed all photo integration on Twitter. So, although links to your photos will function like normal, there is no way to preview them within Twitter anymore. If you'll recall, it was merely a few days ago that Instagram pulled Card support from Twitter, which made any filtered snapshots display in wonky fashions within the micro-blogging network. While today's move by Instagram isn't totally shocking -- it would rather you view pictures on its new browser-accessible profiles, after all -- it's a shame that the contents of many Twitter galleries have vanished in a flash.