Firstly asus will send us mail that we are selected for beta testing program. If you don't receive any email so you are not selected.
Note: No one has got mail from asus untill now.
RangzenAfter enrolling to the beta testing program, they will pick us randomly and selects us for testing. So fill the form first and later you will receive an email regarding your selection. If you don't receive any email then it's your bad luck.
I don't think one has to wait for the mail to get beta. For me it is there for me but can't take the risk.