Another petition which may be more effecitve would be directed at the more rational/scientifically minded people at Google (in as much as they don't have Rick Santorum on their pay roll) to rename nexus 4/7/10 to be in terms of metric units not inches. That would may lead to a very rapid comfort with metric sizes for a large and influential chunk of the population.

This would also avoid the potentially unpleasant comparison to those who hope to eradicate Spanish by demand English be the state language.