Possible Duplicate:
Will it be possible to migrate questions between the trilogy and the Stack Exchange 2.0 sites?
Currently I can close questions on SO, SU and SF with "belongs on serverfault/stackoverflow/superuser.com".
I suggest adding an option to migrate to all relevant stackexchange sites. For instance, a question on gmail should go on webapps.stackechange.com, a question on using android phones should go to android.stackechange.com and a subjective programming question should go on programmers.stackexchange.com. Currently, I can't do that automatically.