upgrading an ipod to iOS4

Today is the day iphone officially launched its new OS to the market which apple calls iOS4. This new OS will not only be working on the company's popular iphone but also on its ipad, and ipod touch.

The installation can be longer than expected since the owner has to download the lastest version of itunes and the software update. You have to back up all your data whether you want to do it not. and it can be a long process for it to finish.

the new upgrade will bring multitask to the iphone 3Gs but it won't work on earlier models.