To play your iplayer over 3g try this it worked for me.
Start a program stream from the iplay in a wifi net work and pause.
when in a 3g network play the paused program
you cannow use the player over 3g provided you use that iplayer page and not start another one.
you can come out of the iplayer but provided you go back to that particular page it will still work. you can even turn off the iphone provided you go back to that page it should work.
hope you find this useful
Start a program stream from the iplay in a wifi net work and pause.
when in a 3g network play the paused program
you cannow use the player over 3g provided you use that iplayer page and not start another one.
you can come out of the iplayer but provided you go back to that particular page it will still work. you can even turn off the iphone provided you go back to that page it should work.
hope you find this useful