Re: I'm puzzled by these attempts.
I was doing that 15 years ago with IrDA.
Do you mean you looked for a not-too-bright-place, a flat surface and then attempted to send a vCard? While the rest of us had said 'Call me and hang up, I'll call yuo back and then you'll have my number'.
Mind, nothing got a bird in a pub hotter than aligning IrDAs.....