After just recently (and still) advertising about its affordable unlimited (un-throttled) plans, Sprint CEO, Dan Hesse now says it “may have to adjust [its] guidance” in the case of the company getting the iPhone.

In other words, if Sprint gets the iPhone, it might have to alter its plans.

Sprint Nextel Corp (S.N) would need to change its full year guidance for 2011 if the company started selling the Apple Inc (AAPL.O) iPhone, Chief Executive Dan Hesse said on Wednesday.

Hesse told a Goldman Sachs investor conference that the company did not include iPhone sales in its recent guidance for 2011.

Whether or not Sprint will get the device is still up in the air, more or less whether or not it can handle it. However, Sprint CFO Joe Euteneuer said last week that it could handle the iPhone.