We already know about the double storage capacity and new colors of the Nano 4G and now, according to AppleInsider, their sources have confrmed that the new 4G Nano is going to have accelerometer support to change orientation! It will be the first non-touch iPod to achieve this!
Also, there's a new version of shuffle on it's way with 5 colors.
Another great news is that according to Crunch Gear, their reliable sources have confirmed that the iPod Classic will come in a new capacity of 120 GB. The 120GB HDD is from Toshiba and the iPod will have the same thickness as current 80GB model!
According to them, they can't disclose more information about the new iPod classic.
[AppleInsider and Crunchgear]