Today Quip was finally launched - modern word processor, that allows to create documents on any device. Editor will work on iPhone, iPad, Android and Desktop and you can download it already (Android full version will be available later).
Project looks like potential Google Docs for mobile devices and now when Google frequently closes own services it could be a good "backup" solution. One of the project authors - Bret Taylor, co-creator of Google Maps and co-founder of FriendFeed, former Facebook CTO and co-founder Kevin Gibbs, formerly of Google. Project investments reach to about $15 million dollars.