i know, that xxx.com domain will expire today. Its registered in godaddy. If I buy backorder, domain will be mine in next day, or this domain will be in some pending period first?
It won't be yours straight away. If it expires today, it goes through a whole process of pending delete, etc. that takes about 75 days before it's released. Also, if someone else backordered it, it will be auctioned to the highest bidder.