So i have a 1g which im going to get rid of soon and buy the latest touch. With my current ipod i go on aim a lot and usually stay sign on all day, so when my ipod goes on sleep mode or w/e it looses the wifi connection but after a couple hrs, i can still received msg's even if the ipod is on sleep mode this way i never miss a message. Sometimes i log on at home and leave for work (which doesn't have wifi) so im logged on all day but cannot see the messages instantly since i dont have wifi at work but then when i get home and it automatically connects to my network i get all the messages that were sent to me throught out the day. I was told that the ipod touch 4g doesn't have this that once it goes in sleep mode, theres no connection in and out therefor i won't be able to receive my aim messages even if im not connected to a wifi. I hope i didnt make it confusing, Thanks!