Sprint representatives have told me that the BlackBerry 8330 Curve is out of stock because it is receiving a new chipset? I have also read about some issues relating to the chipset and Qualcomm. Can anyone explain what all of this means? First, very briefly and simply, what is the function of a chipset in a BlackBerry? Will a chipset, other than one from Qualcomm be better? Lastly, any thoughts about an increase in the device's memory? I'm considering leaving Sprint to go to AT&T to get the Bold and hopefully better service and coverage. I think answers to these questions might help. Thanks all!