RIM has subsequently confirmed that Sprint will be carrying the upcoming Curve 9330 (CDMA version of 9300) by publishing a knowledge base article outlining a current issue with the 9330.
The problem starts when doing a master factory reset using the ##RTN command. Here is the formal description:
After the ##RTN command is performed on a Sprint BlackBerry Curve 9330 smartphone, BlackBerry App World storefront and all preloaded games other than BrickBreaker and Word Mole are unexpectedly removed without user action.”ADVERTISEMENT
Apparently, the only way to correct the problem is to re-install App World. However, this will completely remove all games you may have previously had.
*update* the knowledge base article has since been removed.