The idea is simple.

IF AUTOHIDE RIBBON is turned on,

THEN the Ribbon collapses into the TITLES OF THE RIBBON TABS automatically as your mouse moves off it. The Ribbon re-expands when your mouse hovers over the Title Tabs that the Ribbon collapsed into.

The whole key to this is to have NO DELAY between when you hover on it and the Ribbon Autoexpands, and NO DELAY when you hover off it and the Ribbon Autocollapses.

Please Don't even put in a 0.1ms delay for aesthetics. Default to 0.00ms delay, so that it SNAPS OPEN AND CLOSED. If you want you can give us the option to change the delay, but DEFAULT IT TO 0ms.

The moment you do that you will OPEN UP A LOT OF SCREENSPACE FOR LAPTOP AND DESKTOP USERS.

This has TANGIBLE benefits:

1) In big files you can SEE MORE of them AT ONCE.

2) You can ZOOM IN to documents more and yet see the same amount as before Ribbon autohide was implemented, meaning the default text size in excel can be 10-20% larger with no loss in function solely because of the space created by a seamless, lightning fast, autohide ribbon feature. THIS IS REALLY IMPORTANT IN GROUP WORK WHEN SOMEONE OLDER WITH BELOW AVERAGE EYESIGHT IS PEERING OVER YOUR SHOULDER TO WORK!!!!