Photofeed by Pixable is a new app for the iPhone and iPod touch, developed by the guys who brought us Photofeed for Facebook – the popular free iPad app. Now, users can enjoy a similar experience on their iPhone – however, the iPhone app also aggregates photos from Flickr and Instagram, along with Facebook – which is a great improvement.

As you can see in the above screenshot, Photofeed organizes your photos in groups – namely, by popularity (by the day, week, and service), and also displays new profile pictures all in one place.

You can follow your closest friends via the app, and receive a push notification whenever they’re involved in a photo upload, which is a handy feature. You can also comment on Facebook photos from within Photofeed.

The application takes advantage of the iPhone’s screen, allowing users to swipe up, down, left, and right to navigate through individual photos or entire photo albums. And, if you come across a photo you like, you can easily share it (via email) or save it to your iPhone or iPod touch.

Currently, Photofeed by Pixable is available to download for free. Check it out, and let us know your thoughts in the comments.