The Android community may be awaiting its very own Instagram app, but at least Flickr has now stepped up to fill the void. Yesterday, the photo-sharing service unveiled its very first Android app, along with a new social feature known as Photo Session. Available for free on the Android Market, the app allows users to snap, filter and upload their photos directly to Facebook, Twitter or Flickr, all from the comfort of their own handset. It also features an array of camera functions like flash, ratio selection, and shutter focus, along with ten high-quality filters. Photo Session, meanwhile, allows you to browse through images with your friends in real-time. All you have to do is round up your online comrades, start a session and begin flipping through a photostream. Every time you move on to the next image, your friends will, too, effectively turning any browsing affair into a collective, Don Draper-like slide show. For more details, check out the source links below, or trot past the break for a video run-down of Photo Session.