The product being advertised is the 3G service from Iceland Telecom. The setting is the Last Supper. Then you see, somewhere else, Judah cracking jokes with his comrades .... when he suddenly gets a phonecall on his new 3G phone,.... from Jesus!

This ad has REALLY caused a stir in the Icelandic media.... Most bloggers find it really funny, a few find it not so funny and the Icelandic bishop calls the ad tasteless.
Watch and judge for yourselves:
(The dialogue is in Icelandic though)
http://kvikmynd.is/video....=0&id=4140

I've transcribed the dialogue for those interested:

Jesus: Brothers, where is Judah?
(cut to scene with Judah)
Judah: Hey guys.... then there was once a Pharisee, a Tax Collector and a whore from Babylon on their way to Mesopotamy. (phone rings) Hey, wait one moment...

Judah: Hello meister!
Jesus: Hi, Judah. We are here. Where are you?
Judah: Ummmm.... I'm just, yanno, downtown. Have they said "bon apetit" yet?
Jesus: We're starting.
Judah: Yeah, I'll be there..... oh yeah, right. Can't forget that. I'm just on the phone right now....

Voice-over: Iceland Telecom changes the course of history by being the first in Iceland to introduce 3G technology. .....(ad continues)
[Edited 9/4/07 15:21pm]

Funny!

and out of nowhere bjork comes out.