Cupertino, we have a problem. With over 1.7 million iPhones sold in just three days, Apple's production capacity is at its limits. With so much innovative technology packed into such a small device, there are bound to be some lemons. Many customers have received their iPhone 4 and have no issues, while others have hit the support forums and message boards to voice concerns.

Problems range from inconvenient to completely unfixable. The iPhone 4 comes with one free year of AppleCare, which means that one visit to the Genius Bar can help. With so many iPhones hot off the factory floor, its not guaranteed that even replacement hardware won't have issues of its own. Here's a list of the top 10 iPhone 4 bugs, issues and complaints to watch out for when you receive your shipment from Apple.

The furor over Apple's iPhone 4 antenna design and its impacts on reception when held in the so-called "Death Grip" continue and here are the latest developments. First of all, don't expect AppleCare representatives to replace your iPhone 4 if you're experiencing the issue. Not only this, but Apple employees have been explicitly told not to offer owners free iPhone 4 Bumper cases.

A leaked document posted on BGR instructs Genius Bar employees to troubleshoot the problem, however if the antenna works fine when the iPhone 4 is resting flat on a table, then Apple considers the device to be properly operating. A software fix is not mentioned, and several solutions are to be suggested to the customer.

We've received emails from several iPhone customers, panicked over the possible loss of their yet-to-ship pre-ordered iPhone 4. These users have all received an email from Apple indicating that their pre-ordered iPhone 4, which was otherwise ready to ship, is being held by Apple based on instructions from AT&T. The letter instructs that Apple will attempt to reprocess the order daily for 7 days, at which time the order will be cancelled if the customer has not resolved the issue with AT&T.

The letter to customers reads:

We've heard all the rumors before, but a critical mass of information is making it evident that the iPhone 4 is destined for Verizon Wireless this coming January. Bloomberg reports from unnamed sources that customers will be able to buy a Verizon-compatible iPhone 4 in six short months.

This follows information from DigiTimes that an order for 10 million CDMA iPhone 4 devices will be fulfilled later this year. CDMA technology is compatible with Verizon's network. News stories about Apple negotiating with Verizon have been floating around for months, if not years.