Tumblr is a popular blogging service, that authorizes one to create a microblog and provides lots of features that allows you personalize the service to a whole new level. The Tumblr team has renamed its Tumblrette application (for iphone) to Tumblr for iPhone. This application used to cost $1.99 earlier and now its free. In fact, Tumblrette proved so effective and efficient, the Tumblr team bought the app, made a few more changes, dropped the price to free, and redubbed it Tumblr.

Tumblr’s popularity is built on the ease with which people can post text, photos, links, sound clips and more. The iPhone app gives you access to all of these posting options except video. One great extra feature in the Tumblr app is the ability to record audio clips on the phone and post them directly to your tumblelog.

One of Tumblr’s core features is the Dashboard; you can access it through the iPhone app, where you can view updates from other Tumblr sites you follow as well as “re-blog” individual posts. The addition of the iPhone Dashboard, an iPhone optimized version, was a tremendous boost to the rebranded app.

If you’re a Tumblr user, then this app is essential. Not only does it make it very simple to post on the run, but now catching up on your Dashboard updates is just easy.

Tumblr is compatible with any iPhone or iPod touch running the iPhone 2.2.1 software update.