Neal Stephenson is up to something interesting - again :

We are developing our first project, The Mongoliad.

The Mongoliad is a new kind of serialized novel, created by Neal Stephenson, and written by Neal, Greg Bear, Nicole Galland, Mark Teppo, and a number of other great authors. It will be told via custom apps on iPad, iPhone, Kindle, and Android, and will be something of an experiment in post-book publishing and storytelling.

[From Subutai Corporation]