These are my Top 6 Liberal/Nonpartisan Political News Apps on the Google Play Store. Note: This list isn't in rank order.
The Politicus - The Politicus http://thepoliticus.com/ is a collaborative blogging community that facilitates content creation directly on the site. If you are a political blogger or would like to start blogging about politics please join us today.
Dailykos reader - Browse the Daily Kos (TM) website in one convenient format!
Crooks & Liars - Liberal News - Crooks and Liars http://crooksandliars.com is a politically left blog focusing on political events and the news coverage of them.
All Voices: Liberal News - Your mobile source for news from progressive & liberal news sources.
Progressive News - Progressive News has the best liberal news feeds from the web. Get up-to-date info and content Regarding progressive political, important civil rights issues, and everything else did effects our community striving
Political Nation Left - A simple way to get your political news, in one app.
Political Nation Left collects the best blogs and news sites with a Left-Center, liberal, and progressive lean, all in one convenient app. Catch up on your progressive news on the go!
See full Top 20 list here