The Tumblr app for iOS lets you interact with the social network by posting just about anything from your iPhone, and a recent redesign of the interface makes it even easier.
The Tumblr app interface gives you a Home screen with the latest posts from the people you follow and buttons across the bottom for navigation. When you touch the Tags icon, you get a list of random photos you can swipe through to browse (great for discovery), and you can enter a tag if you want to look at posts with a specific tag. You can touch the profile icon to view your profile information, and see notifications, people you're following, and a discovery tool for finding new blogs. On the bottom right there is a post button: you can choose a post type (from an elegant list), then post to your Tumblr from your iPhone. If you have several Tumblr blogs, you also can easily manage them and switch to them from within the app.
This latest version of the app not only reworks the interface, but it felt much more responsive as I browsed through the menus. The new look is very sleek, and I think people will really appreciate how quickly you can post whatever you want with only a few taps of the screen. Especially cool-looking is the post-type screen, where icons slide in for each of Tumblr's main post types: Text, Photo, Quote, Link, Chat, and Video. Touching a post type takes you directly to the input screen where you can add your title, add tags, and publish to your Tumblr.
One thing that still hasn't been addressed in this version is there still isn't an easy way to add style to your text. To make bold subtitles, or use other common style formats, you still have to enter HTML tags. Blog posts often have simple formatting to make the different sections pop so it just seems like that's a feature that should be added to the interface.