Edward McNamara, professor of liturgy at the Regina Apostolorum university note that "at least one cardinal, celebrating in his cathedral, has publicly used a tablet in lieu of a missal, but this does not constitute official ratification."

McNamara expresses an opinion about the liturgical use of iPads and other electronic devices. He cautions that "what I say has no official standing whatsoever. I limit myself to what I consider to be the liturgical principles involved."

He concludes that, "Someone could develop a tablet for exclusively liturgical use with an appropriate design and no other programs installed. That might change the terms of the debate."

"Until such a time arrives, I think it best to avoid using such instruments so as to maintain that sacred distinction of the liturgy from the humdrum of ordinary activities," he says.

Read the Edward McNamara opinion on Zenit

Father Edward McNamara, a Legionary of Christ, is professor of liturgy at the Regina Apostolorum university.

Image: Eternity Bible College

Data projectors are almost universally used. Powerpoint has become a must. What about recorded music?

In a recent Blog Bosco Peters looks at a few of the issues. "Sure, there's possibly ways of incorporating digital images and contemporary technology," he says, but concludes that "When it come to the liturgy - I'm mostly a Luddite".

Read Bosco Peters Blog

Bosco Peters is runs a blog site Liturgy - worship that works - spirtuality that connects. He is an Anglican priest and academic.