The Wall Street Journal recently launched a BlackBerry app which lets you peruse the headlines of WSJ.com, MarketWatch.com, Barrons.com and AllThingsD.com. Tabbed navigation lets you quickly switch between sections, address book and social bookmarking integration lets you share articles easily, RSS reading and keyword monitoring let you track the news you care about, and stock info is readily available. Not a bad little, app, but vaguely Viigo-esque, no? (Edit: That would be because it’s actually powered by Freerange.) To give it a go, head on over to the WSJ.com Mobile Reader.