Something that I read over on Bussaboutwireless.com... the picturemail applicaiton appreantly does not run in the backgound and must be open to receive the notification.
I have tested it to some degree and their seems to be some truth to this. If I leave the application open I will receive a notfication that I have a new pic mail. The application in general is slow for whatever reason, but from what I gather, Sprint is working on a fix
for these issues, no indication on when it will be available though...
Reference:
http://forums.buzzaboutwireless.com/...cending&page=2