The rumours are flying thick and fast now but the latest consensus seems to be that Apple will hold a media event where they will introduce the new iPhone and possibly new iPod Nano with wireless capabilities.
The highly rumoured iPad Mini is now expected to be launched at a seperate event sometime in Oct.
If Apple did introduce WiFi to it's line of iPod Nanos this would open the door for the company to put iTunes on the device letting users buy songs directly.
It is now