I have my exchange setup. It works...to a point. It doesn't always sync right away after changes are made. New mail is set to push. It doesn't appear to be very stable. I'm not sure if its the program or what. I did try the Touchdown app but, I haven't decided if I like that one or not. Has anyone else had any issues with this phone and Exchange? In Touchdown, what is the maximum number of days you can sync? There is no "all" option. Is there any other VERY GOOD mail apps for this?