In Phaser 2.0, once a Physics.ARCADE system is enabled for a given sprite, then setting sprite.x = n or sprite.y = n won't have any effect, but still works using sprite.body.x = n.
It would be nice to be able to set sprite.x or sprite.y as previous versions.
Yes I've reverted quite a few ArcadePhysics things back to 1.1.3 level, so please give the dev branch version a go (you'll need to compile from grunt until I push a new package).
In Phaser 2.0, once a Physics.ARCADE system is enabled for a given sprite, then setting sprite.x = n or sprite.y = n won't have any effect, but still works using sprite.body.x = n. It would be nice to be able to set sprite.x or sprite.y as previous versions.