Just browsing on Orange UK at pay monthly phones, and it says that the 9780 is sold out. Now I don't really know what this could mean, could be just a standard sold out and they going to replace them with some new ones when they come back into stock, or maybe it means the 9900 is coming soon? Might give them a ring as im due for an upgrade from now, see if the 9780 is coming back into stock.
Just a bit of information, nothing special I suppose.