Browse
Browse photos in Flickr, even if you don't have an account. If you do, then you can also browse your photostreams, sets, favorites, groups, and contacts.
Full screen photo browser that lets you swipe through photos and zoom by pinching
View photos as a slideshow.
Upload
Upload photos directly from your iPhone/iPad, upload in the bakground while you continue browsing your photos.
Use the device’s photo library as source, the camera, the Camera Connection Kit, or using iTunes drag and drop, to get photos from your computer.
Exif and GPS information is maintained when uploading.
Edit
Edit your flickr photo's metadata, geo location and security.
Edit photo metadata in batches.