1st idea:

this idea that when a user on a mobile device puts their finger on a field, the field "morphs" bigger so:
a) user finds it easier to edit that field
b) user finds it easier to read that field
c) looks cool as slowly morphs into place but user can see the background so knows context. If instead doesn't want to edit, can continue with the flick to continue reviewing whatever

this way the text can be more  of a regular reading size, but gives ability to the user to edit when they have fat fingers like myself.


2nd idea:

something to do with the flow - how moves from window to the other.

More than likely "fluid" looking, the idea is to make it easier for the user to understand where they are in relation to where they are.