Mobility On Standing?

[Opuk0]

Does Mobility apply to the AoO from standing from prone?

[Pizza Lord]

It does not.

Mobility wrote:

You get a +4 dodge bonus to Armor Class against attacks of opportunity caused when you move out of or within a threatened area.

There are differences between 'movement' (for game purposes) and a move action. Specifically, however, you aren't moving within or out of a threatened area for purposes of Mobility. (In this case, moving 'within a threatened area' refers to movement that keeps you in their threatened area, not just actions which might involve moving, like jumping in place, waving your arms, or digging in your backpack.)

[Quixote]

With that said, Mobility is woefully situational as it is. I'd certainly be okay with using it in that way.