I think the trouble is, it just sounds too gucci! Some senior type will get all tight about it looking like we're being frivolous by bringing our pubs into the 21st century and can the whole idea.
On a certain 4-jet widebody fleet, they recently worked out that by eliminating the cost-to-carry of all the docs, you could buy 3 iPads per jet in around 4 months - a total no brainer but still we rest in the dark ages.
The only issue might be the additional time spent in the hold finishing off that last level of Angry Birds
