Dryly, then, I'd say the air magic available to Caelum works quite well at enough things to be a strong asset, if not as poweful as it was in (edit: D2). I don't think it can accurately be described as "broken" compared to the abilities of other nations in D3.
Some of you really aren't reading what Ironhawk is saying at all about when exactly is Caelum at their weakest. I don't necessarily agree with his points since I think air magic is one of the stronger evocation trees but there is a definite problem with early mid game for most magic reliant nations.
I agree. They are weaker. I would like to see one more large area air spell added somewhere high in evocation. It would be a Caelum only spell. Something like chail lightning or shimmering feilds...