Apple finally decided to quell the rumors about its next-generation iPhone when it sent out email invitations Tuesday to an Oct. 4 press event called "Let's Talk iPhone".

This is the first time that Apple will officially talk about the new iPhone aside from half-baked rumors attributed to anonymous Apple insiders.

Aside from the expected iPhone 5 announcement, what else can we expect from Apple at this event? On the invite there's only one missed/call voice mail icon, which could mean that there will only be one new phone. It's been rumored that Apple will release two phones this year: the iPhone 5 and the iPhone 4s, a cheaper version of the iPhone 4. There has been plenty of evidence around the Web that there will be a two-phone release. Pictures of an iPhone 4s case were reported on Vietnamese site Tinhte. Just last week former Vice President Al Gore, an Apple board member, stoked rumors by mentioning new iPhones (plural) next month.

Piper Jaffray analyst Gene Munster believes that Apple will not be releasing two new iPhones this fall.

"We do not expect a low-end iPhone," Munster wrote in a note to investors. "Rather, we expect Apple to continue with a lead device (iPhone 5) that carriers sell subsidized for $199/$299 along with a previous generation device (iPhone 4 or iPhone 4S) for $99."

Another thing we can take away from the invite is the lack of mention of a new iPod. The iPod has taken a backseat to the iPhone, but given that Apple sold 7.54 million iPods in its third quarter, there is still interest in the media device. Besides, what other innovations can Apple do to the iPod? Right now releasing a new iPod model would only mean a different design and nothing that would warrant a big event.

Analysts are also looking forward to the performance of Tim Cook in his debut as CEO. How will he measure up to his predecessor's showmanship? All these questions will be answered next week. Stay tuned.