I'm ready to go to an apple store to turn in my 3g(bad battery after 17 months) under applecare extended warranty. I've heard some people have received replacement 3gs. Should I wait a couple of more months until 3g stocks are depleted to increase chance of 3gs replacement? I don't want to get an old refurbished 3g. I've been on the $119 service plan for 17 months if that makes a difference. Any tips would be greatly appreciated. Thanks.