Did you see this YouTube Clip about the groom who updated his facebook status from "engaged" to "married" right after he recited his vows—while they were still standing at the altar? I think this is hysterical, though I wouldn't like to see it become a trend. At one point he gives the bride her iPhone so she can update her status too.
I think it's great for a laugh and a funny wedding moment they (and now the world) will remember but please leave your cell phone, pager, blackberry and iPhone in the bridal suite that you get ready in. Or if you are worried it may get stoles give it to a close family member or friend who is a guest at the wedding and won't be part of the processional.
If you haven't seen the video of the "facebook groom" as he will probably be called here it is below: