Has anyone installed the iPhone SDK and Xcode 3.1? Any problems building against it? Stuart Chalk, Ph.D. Associate Professor of Chemistry Department of Chemistry and Physics University of North Florida 1 UNF Drive Jacksonville FL 32224 P: 904-620-1938 F: 904-620-1989 E: schalk@unf.edu W: http://www.unf.edu/coas/chemphys/