Interesting I am testing this IR repeater at the moment. My idea was to put it halfway in the room, but unfortunately it's not working for two reasons. 1) In the middle of the room the TV seems to detect both the N900 and the repeater causing confusion, not tried with the IR lead from the schematic. 2) I couldn't get hold of any IR photodiodes that were resistance to white light so it fails with any light (including the light from the TV) Not had time to play since.