Feed reading on the go is an unsolved problem, none of the available options really feels like they've nailed it yet. Feedly, the popular browser plug-in that turns your Google Reader subscriptions into an attractive magazine-style display, has just released an iPhone app that may be my favorite mobile feed reader I've tried. (iTunes link) When I've got free time and am looking for something good to read, I've been launching Feedly for the past few months that I've been testing it.

The app, which sells for $2.99, offers an attractive folder-based navigation that's easy to thumb through horizontally. Sharing, bookmarking, Tweeting and emailing are all very easy to do. There's no limit to the number of feeds you can subscribe to in the app. It uses a popularity metric to surface key items in each folder of subscriptions that you should read if in a time crunch. It's a great little app and well worth a few dollars.

I do wish that Feedly scaled up better on the iPad. The horizontal navigation that it offers makes a huge difference, though, on the iPhone. What do you think of Feedly for iPhone? What's your favorite way to read feeds on mobile?