• by Mark Walsh  @markfwal, March 3, 2010

A new survey by the Pew Research Center released Monday found more than a quarter of all American adults read news on their mobile. The expanding mobile news audience has helped trigger a flurry of new apps from The New York Daily News, AOL's Seed.com and The Washington Post.

The free Daily News app developed by Handmark offers the full range of the tabloid's content and is available across iPhone, BlackBerry and Windows Mobile devices, with Android, Palm webOS, and high-end Java smartphones to come. And no, the New York Post doesn't have an iPhone app yet.

Seed, AOL's answer to traditional journalism, meanwhile, has introduced a free app for the iPhone and Android and BlackBerry phones that allows freelance writers to submit new stories and photos without a PC. The content platform also includes a location-awareness feature that lets users get local assignments.

Separately, The Washington Post on Wednesday launched its first paid app for the iPhone, providing greater customization and the ability to save an unlimited number of stories and photo galleries for $1.99 for 12 months. Other news outlets charging for their apps include The Guardian, CNN and The Wall Street Journal.