Why are paths depracated in favor of NSURL?

FROM : Jerry Krinock
DATE : Fri Feb 08 18:35:58 2008

Most of the recent API from Apple refer to files with NSURL instead of 
NSString paths.  All I get out of this is the pain of having to write 
a couple extra lines of code.  What are the advantages that I'm not 
appreciating?

Jerry