The EFF still feels the warrant was definitely improper, now that they've seen the whole thing (http://www.eff.org/deeplinks/2010/05/iphone-warrant-affidavi...) citing section 1524(g) of the CA penal code, which says no warrants can be issued for [unpublished information obtained/prepared by a journalist].

I am not so sure about this legal theory. Courts have upheld judgments against CA journalists for engaging in actual criminal activity. Also, attorney privilege, which considerably exceeds that of reporters, falls in a case where there is probable to cause to believe an attorney obtained information by committing a crime (CPC 1524(h)). So, debatable.