grid is not the header, header is "sticky" and always stays at the top, grid will disappear while scrolling
I think you should provide ability to place iOS-like buttons in the header, we could use it for save, back, etc. on both left and right side
as I pointed few posts below, using jquery mobile styling for main buttons in the app is the reason for rejection in app store - JQM is no good for this...
solution:
- add ability to add buttons in the header, right and left side
- create iOS-like swatch with under Jquery Mobile theme