OK - probably over complicating things in my usual way

I've got a wedding in a couple of week's time where they're wanting guests to provide photos of the day to display on my 50" LCD
It's got various inputs etc., but I'm planning on hooking up a small laptop (Windows) to run any photos that are donated of the happy couple.

The big question is....how to get the guest's stuff onto the laptop in the first place?
OK - SD cards from cameras are easy, and in many cases phones as well. What about those ever popular fruit flavoured devices though? From my own bitter experience of getting photos off of my own gadgets with a certain fruit on the back, you can't just connect them to a PC these days very easily and grab them from the phone/pad.

I did think about them uploading to a web thing such as Flikr or similar or even emailing them to me, but network access there is flaky to say the least.

Is anyone else doing this, and if so.....how?