*It also uses formal properties wherever appropriate and (currently) uses GCD internally.
*Currently, this does not provide any way to hook standard input up to anything. You can either let it be inherited (default, as in NSTask) or nullify it (connect it to /dev/null).
- *Also, this does not yet have a formal version of NSTask's environment property. Until then, setting the process's environment is unsupported.
@property(copy) id standardOutput;
@property(copy) id standardError;
+@property(copy) NSDictionary *environment;
@property(readonly) pid_t processIdentifier;