[Dimensio]

It just makes those who don't believe in God unhappy.

It implies the belief in the existence of some God, which has theistic and thus religious connotations. Some people -- myself included -- would rather the government keep silent on matters of divine entities and leave it up to individuals. There are other people who do believe in a god who may feel that the name "God" is a sacred name and not something to be touted about in a nationalistic socialistic "pledge" to a graven image.

[BMCDA]

Yeah, I'm also in favour of changing "In God We Trust" to "In G-d We Trust" on the Dollar. Methinks Argee may also support this idea ;)

[baseballfanjm]

Could one interpret this ruling as a violation of the ninth amendment? Sensibly, I mean.