Macbook pro retina setting resolution to 2880 restored to 1440 after restart system
I found a solution here:

http://wineskin.urgesoftware.com/tiki-view_blog_post.php?postId=51


  This isn't exactly a Wineskin related post, but... with the new Retina
  Macs not having a way to truly change the resolution, I threw together
  a little app that uses the WSReso command line tool I made for older
  versions of Wineskin for changing resolutions before RandR was added
  to XQuartz... it uses WSReso and its just an Applescript GUI front end
  that lets you change resolutions, including knocking that Retina
  Display Macbook Pro up to a true 2880x1800.  Works on any Macs for
  changing resolutions around... its very simple, but effective.
  
  http://wineskin.urgesoftware.com/Special/Change Resolution.app.zip
  
  EDIT: update
  
  if you want to just have an app that automatically goes to your max
  resolution that you can put in your startup items... use this
  
  http://wineskin.urgesoftware.com/Special/SetRes.app.zip