Good Heavens! I did not expect this to be such a contentious thread! I was just, you know, poking around at the edges of the rules. I think the giveaway sentence in the description of the spell is this:
SRD said:
Chipping is equal to a mere scratch, but breaking off one of the statue’s arms constitutes serious damage.
If the caster were an animate statue, then the appearance of this sentence would be totally absurd.
Other arguments against the animated-form camp (sorry, I2k) are:
1)
Statue's duration (1 hr/level), compared to
Iron Body, a higher-level spell, which is 1 min/level.
2) Assuming that the name of the spell is not simply flavor, you would think that the caster would get some kind of Freeze ability like the gargoyle. Methinks the spell grants that by default, namely, by freezing you until you choose to revert. If the name
were flavor, they would have named it something else, like
Greater Stoneskin.
Assuming, then, that this spell does not grant the ability to physically act while in statue form, is it reasonable for the caster to be able to revert to flesh, get a full round, and then change to stone? Is the form-switching really free, or is it swift, or even immediate?
If someone tried to bull-rush your statue off a cliff, could you immediately revert to flesh to collect on your Attack of Opportunity?