A new iPod Touch for back-to-school ?

Stocks of the iPod Touch are reducing with regularity and a stock shortage is threatened. Even though this beginning of shortage could be explained by promotion for students proposing one of these devices for each portable bought, it is not enough to justify the fall of the high-ends models.
According to certain analysts, Apple could bring out a new model for the back-to-school period, the goal being to reposition the iPod Touch compared to the more interesting 3G iPhone (but needing a subscription).
It is true that Apple must find the means of disassociating these two devices so that each one enjoys strong sales, such sales being an important condition for the success of the AppStore.