just a note...there is a free App Called Emoze (
http://wwww.emoze.com) already that does this for you for OWA.
But having another one does not hurt at all.
give emoze a try if you have not. works great for me...
I have a similar issue (we have to pay a fee a month just to get push email, but emoze breaks that for free thru owa)
I'm curious what app you can create to make this happpenn also.