This version of the app is significantly improved over the old Flickr app (which I was scared to launch, for fear of opening a wormhole to 2008). It’s a hell of a lot smoother than the old app, and everything’s just a little bit tidier and more logical than it was previously.
There are a lot of UI problems, though: Flickr branding in the toolbar, blurry icons, weird “stacking” animation when moving forwards and backwards through photos, and a flipping information panel with no close button, amongst many other complaints.
Update: While uploading a photo, I noticed that Flickr takes over the status bar, kind of like Twitter’s official app. This doesn’t seem right to me (and they didn’t bother to match the text colour, either).