I'm pretty sure they'll tell me to do one, or charge me £150+ for a new display, or offer me a PX on an iPad 2 if they're feeling really generous.
I'd rather diagnose the fault and replace the part myself tbh, seems to be the cheapest option if it is the screen.
Ta anyway.
Even if they did all of the above, you can still say no and what will you lose? At the moment you can't diagnose the fault yourself because you're asking here for help. Honestly, if you don't know what the exact issue is with it, why not just take it in anyway and see if they'll help? It might be something that they can help you with pretty easily.
Looks like it's been dropped and broken the panel.