There has been a lot of speculation in the last month after some mock-ups and UI video of the new iPods leaked. Today many sources reported that Apple will be holding an event on September 5th to present some innovations to their digital music players lineup. The invitation features a cover flow style front with the foremost album cover containing a silhouette iTunes dance holding an iPod (and the other album cover being Beatles' albums). Speculations say that Apple is going to announce OS X based iPods, probably an iPod Nano 3G with a new form factor (here a mock-up),...