Have you noticed? The people who whip out their cell phones the split second the landing gear hits the ground never talk about anything urgent.
"Yeah, Bill? Hey. Bill? Can you hear me? Yeah. I'm in Baltimore. We just landed. Right. Okay. Yeah, like I said, I'll be there as soon as I get my luggage. As soon as I get my....can you hear me? Oka....okay....yep....see you in a few!!"
Hey, pal, Bill remembered the plan when you told it to him the instant before the flight attendant told you to shut off your phone an hour and a half ago.
When we get cell phones in flight, expect more of this cake hole tedium.