The new iPhone, which may or may not be called the iPhone 5 (probably not) is expected to be unveiled on September 12. That leaves retailers about a month to start selling more of the older models before people drop to their knees in excitement over Apple’s newest product.

Rumors of the next iPhone have already put a dent in Apple’s iPhone sales. “We’re reading the same speculation about a new iPhone as you are, and we think this has caused some delay in purchasing,” CFO Peter Oppenheimer is quoted as saying on the company most recent earnings call.

People want that new iPhone, so lower prices on the older iPhones should help move some of them off the shelves. We recently reported that Best Buy was selling the iPhone 4 for $50, but there are other price drops from other stores, as well.

Ina Fried at All Things D reports that Target is offering the Verizon and AT&T versions of the iPhone 4S for $179, and that Sprint is selling the 4S for $159.

The Wall Street Journal reported last week that Apple Stores are matching discounts on iPhones.

Of course, if your’e in the market for a new iPhone, you may just want to wait a month, and see what the latest one has to offer. For an idea of what to expect, check out the latest rumors.