Keep an eye on this one.
Great potential mobile stack. From GUI to server side it's all javascript.

They are currently trying to figure out their JS framework torn between Blaze (theirs), React (Facebooks), and AngularJS (google's, and the one I am waiting for).

AngularJS is another waiting game. Currently at 1.x, their new 2.x is due out soon (?) but is not really compatible with 1.x ...yikes.

Wait for Meteor with Ang2.0.

My Meteor sample application, host in Meteor cloud
(for free):