The iPhone 4S may be Apple's next mobile masterpiece, but as with any technology things aren't always perfect when a new product is introduced into the wild. Several reports from users have pointed to a variety of problems with the iPhone 4S, although most of these should be resolved over time. It's the early adopters that take the brunt of launch week issues.

Some would say it's a fair price to pay for getting the latest and greatest iPhone before anyone else. Regardless, Apple sold four million iPhone 4S units in the first weekend. Those who are waiting for the dust to settle might be interested in exactly what problems 4S owners are experiencing and how long they will linger. Here are the top 5 problems, issues and complaints revolving around the iPhone 4S launch.

Some Sprint subscribers have been complaining about slow data speeds since the carrier launched the iPhone 4S on Friday. Sprint responded to the complaints by telling PCMag.com there have only been a "small number of reports," and that their 3G network is fine.

"As always, Sprint is carefully monitoring the performance of the 3G network. We are looking into a small number of reports of slow data speeds when using the iPhone 4S, however there are also reports showing that Sprint’s network is the fastest, such as the Gizmodo report that came out earlier today. Speed tests represent a moment in time and are subject to many variables including weather, time of day, device, and proximity to a tower. Sprint will continue to monitor the feedback we are getting from our customers and will investigate and resolve any issues that may arise."

When it comes to battery life, Apple's official iPhone 4S specs are a little bit dodgy. According to Apple, the iPhone 4S has one-hour of extra 3G talk time than its predecessor, but the same battery life as the iPhone 4 when it comes to basically every other feature. iLounge decided to investigate how the iPhone 4S improves upon the iPhone 4 in some categories, and how it falls short in others. The tech site put the devices through an extensive battery test and discovered the iPhone 4 actually has a slight edge over the 4S when it comes to battery usage.

In a 3G Data test the iPhone 4S failed to outlast the iPhone 4 in Audio Playback, Video Playback, and Video Recording. The iPhones were pretty even for FaceTime and Wi-Fi with the iPhone 4S clocking in slightly better for Cellular Calls. The chart above shows some of the comparisons for AT&T.

Are you missing some key jailbreak tweaks now that you've updated your iPhone 4 or 3GS to iOS 5 firmware? Already tired of dealing with all of the shortcomings in iOS 5 notification center? Luckily if you have saved your SHSH blobs you can easily downgrade and return your iPhone to a jailbroken state (and reinstall LockInfo!)

In order to downgrade you must have saved SHSH blobs. Pictured above are how saved SHSH files appear for each firmware version in Cydia, when they are saved to Saurik's server. Follow these steps to downgrade to earlier firmware, including iOS 4.3.3 for an untethered jailbreak with JailbreakMe.

Let me start by saying that none of the items mentioned in this list are new discoveries. All of the gripes below could have been noted months ago, after Apple first introduced iOS 5. If not then, it could have been revealed by reading the numerous descriptions of Notification Center from IOS developers and other users that installed one of iOS 5's many beta versions. Instead, I plodded along ignorantly, happily enjoying the world of jailbroken notification handling (via programs such as LockInfo and Intelliscreen), assuming that when Apple released iOS 5, I'd have all the intuitive, useful goodness I'd been enjoying for so long built right in. Boy, was I wrong.

Apple seems to have taken a good idea and executed it surprisingly poorly. Concepts which seem as though they'd be simple common sense are simply ignored. Instead of feeling complete, the Notification Center implementation seems rushed, with obvious needs overlooked.

While there are other complaints, here are what I consider to be the 5 biggest oversights with the new iOS 5 Notification Center.