Download from:
Autodesk® Remote | AutoCAD | Autodesk Exchange Apps

Requirements / limitations:

  • free tool enabling users to drive any Autodesk product* from a remote computer 
  • if you use Inventor – from an iPad (companion application)
  • only available to users on subscription contracts
  • need to be running Windows 7 or 8 – no Mac version yet 
  • a 4G/LTE wireless connection or a wired connection with an upload speed of 2Mbps or better
  • English-language edition.

More info at:
Autodesk releases Autodesk Remote | CG Channel

Heads-up:

Well, its available somewhere.  I can’t seem to get the link going here in Australia, but Steve Bennett did (see image and tweet below).  I’m guessing this is only in certain localities?

Here is a PDF about it:
http://static.autodesk.net/content/dam/autodesk/www/products/autodesk-revit-family/docs/pdf/Revit_RevitLT_online_trial_final.pdf

And some Google search results:

Heads-up: