The most important thing to know about the highly anticipated 4S/iOS jailbreak is that it is not quite ready yet.

Just two weeks after the release of the iPhone 4S, companies such as Best Unlock have been suggesting that they have launched a jailbreak for the 4S/iOS 5 software, but it turns out the software only works on the iPhone 4.1, 4.2, 4.2.1, 3G 3Gs and iPhone 4 4.3.3-4.3.

New reports have come in that the infamous Dev Team of hackers have found a way to jailbreak the new 4S, but they still have some way to go until the software is complete, Mobile Beat reported.

MuscleNerd, the lead developer for the iPhone Dev Team, posted two screen shots on Twitter of a preliminary jailbreak on the 4S, but has said the missed pieces are delaying its public release.

Jailbreaking is generally risk-free, according to Best Unlock. It only adds features to a mobile phone that are otherwise fixed on the exclusive Apple functionalities. With a jailbreak you can download apps that you would not normally be authorized to at the Apple Store.

MuscleNerd has posted a video of a jail broken iPad 2:

Through unlocking and jailbreaking their phones, past customers have been able to obtain free GPS Navigation applications; zero roaming charges for overseas calls; enabled video chat on 3G and 3GS iPhones; as well as having the Cydia application installed, according to the Best Unlock website.

I had lots of questions regarding the validity of this software, and they were all answered in minutes. After downloading the software, it was a painless two-minute process. I thoroughly recommend this, Martin McG of the United Kingdom says of the Best Unlock iPhone unlock software.

The following iPhone software's can apparently be unlocked and jailbroken: iPhone 4.1, 4.2, 4.2.1, 3G 3Gs and iPhone 4 4.3.3-4.3. Visit: www.BestUnlockiPhone.com

Meanwhile, an unlocked version of the iPhone 4S is set to go on sale in November according to Apple's Web site.

The Newest Features on the iPhone 4S:

The A5 Chip: The new iPhone may have the same retina screen but the interior has had an entire revamp with the latest A5 chip making its way into the phone.

It's Fast: With a dual-core CPU, the new iPhone is 2x as fast at CPU tasks and up to 7x faster than the previous iPhone, which is a great perk for games. Data can also be downloaded twice as fast as before. Theoretical max performance used to be 5.8 up and 7.2 down -- it is now doubled to almost 14.4Mbps down.

Second Wireless System: The new iPhone can now intelligently switch between two antennas to produce even higher calling quality. This has never been done in a phone before.

Brand New Camera: As predicted, the iPhone 4S comes with an 8-megapixel sensor that gets 73 percent more light than the iPhone 4 sensor, and is faster. A high-end IR filter has also been fitted for greater accuracy and uniformity.

New Lens: The brand new camera lens has five elements and goes down to a wide f2.4 aperture

Apple designed ISP: The ISP enables face detection in photos and lets in a lot more light while shooting.

HD Video: The new iPhone 4S camera comes with stunning HD video with 1080p real-time video image stabilization.

Intelligent Assistant: With the new iPhone you can actually talk to your device through an integrated intelligent assistant who gets things done just by asking. What is the weather like? Where is this restaurant? Your device gives you all the answers you are looking for. Compose and dictate email right to your device. Set timers. Look up contacts, create notes, and search the Web.

More Languages: The intelligent assistant will have built-in with support for English, French, and German. More languages will be added over time.

It's out: iPhone 4S is available in Black and white, 16GB for $199, 32GB for $299, and 64GB for $399. This is the first 64GB iPhone.