This could be a leak or purely a rumor, but mobile carrier Telcel is reporting that Apple will be shipping a new version of the iPhone hardware on September 30th, 2010 that contains a new antenna design. The new design supposedly solves the dropped calls and poor reception issues that many users have reported.
The end of September date seems to coincide with the end of the free case program so on one hand it makes sense. Apple releasing new hardware this quickly and at this time of year though is unlike anything apple has done in the past.
Either way, ExecTones will be there supplying business ringtones to the new device.