There is no difference if one of the actors is using one operating system rather than the same one used by the server. Actually, clients can get specific advantage of this architecture, by requesting tasks that are not available in their operating system but can be easily performed in the OS of one of the workers.
Language, the greatest divider in the recent technology, is not an obstacle anymore. Clients can keep coding in the language they are most familiar with, and the workers will use libraries and classes that are only available to specific languages, without need for the clients to be involved with the nitpicks of such complex systems.
Gearmam, from the_worker's_perspective copy
GearmanFrom the Workers Perspective
/usr/bin/whoami• Brian Aker• HP Fellow• Previously MySQL, Slashdot, Sun Microsystems