Instagram releases real-time updates API
With a reported 2,000(!) developers already signed up for the API, third-party apps on other platforms (hello, Android!) probably aren't too far off. All it will take is for the API to go read-write and allow third-party apps to post photos and comments to your account. Instagram competitor Picplz already has an Android app, so it would behoove Instagram to get up and running on that platform ASAP.
If you don't have an iPhone, but you still want to see the new API in action, check out the official API demo or visit Instagre.at, a web gallery of Instagram photos.