Oh, I definitely don't advise lying to the I/O! Over on LJ on one of the LDR comms, that seems to be the standard answer to "what do I tell them?"...anytime I chime in with "Don't lie!" I get brushed off. It sort of annoys me, especially given what a lot of you have been saying. I didn't even realize they kept a written record of what you told them beyond what was written on the landing card.
As for the meeting online vs. IRL - I told the I/O Tim and I met at a convention in 2005. Which we did. We just also happened to have been chatting online for about a year prior to the convention, but I figured that wasn't the important part. The important part was that Tim and I had met in person before.
I haven't spoken to my friend at all yesterday, so I'm not sure what she's going to do. Tim suggested she fly into Dublin, then take a train to Belfast, as this is apparently pretty easy to do.
*edit* And apparently security at Leeds is a joke?