The Burbn boys have released a new version of Instagram into the wild. Instagram 1.8 is the latest version of the iPhone-meets-Polaroid-Swinger-meets-Twitter social photography app, and it's available for an update on the App Store now.
What's changed? The app is somewhat faster and more reliable, but the big change is in how you can "like" a photo in your Instagram stream, interact with comments, and enter usernames. First, photos can now be marked with "like" by double-tapping them. With that simple gesture and a big white heart icon appearing briefly (see image at right) for feedback, you know that you've just sent someone a big thumbs-up on their photographic effort.
In comments, you can now start mentioning someone by typing @ and the first few c
