Have the mobile carriers like AT&T, Verzion, Sprint and T-Mobile got the much-awaited Apple iPhone 5 in hand for beta testing? Well, a new round of rumors has indicated that various mobile carriers are in the process of testing the future generation of iPhone for their networks.

According to a ChipHazard report, the iPhone 5 is now in the hands of 3rd party beta testers, which are carrying out rigorous tests before the final green signal is given for mass production. The report also said that the device was handed over to AT&T beta testers on July 6.

Another report from Examiner.com has also added fuel to the fire saying that T-Mobile is testing the iPhone 5 for their networks too. As per the report, the T-Mobile iPhone 5 is being tested in Los Angeles, and it is believed that the Verizon and AT&T versions are being tested as well, but there is no actual confirmation on this.

Mentioning some anonymous sources, the report also said that beta testers have been given the pre-release version of the iPhone 5, and are running tests including signal reception and connectivity tests. Once they are done with it, Apple will ask manufacturers to start the production of new iPhone 5 units.

In case of rumors of the Sprint testing the iPhone 5, they have been steadily increased since the early spring. Adding to the rumors, a PCMag report said that the iPhone 5 will indeed be offered by Sprint. The 'most noteworthy' change to Apple's next-generation iPhone is that it'll be offered by Sprint, the report said.

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ArtoftheiPhone has also encouraged the rumor. According to it, pre-production versions of the iPhone 5 has been given by Apple to its networks to test before giving it for the mass production.

When it comes to the phone specs, speculations are rife regarding the next generation iPhone. Its key (rumored) features include a faster 1.2 to 1.5 GHz dual core A5 processor chip, 8 megapixel camera, larger screen, thinner design, greater storage and obviously, iOS 5.

The current iPhone 4 was announced at WWDC 2010. Therefore, people were expecting Apple to announce, or to give some details of the upcoming iPhone 5 at WWDC 2011. However, being a software only affair, this year's WWDC didn't bring any information regarding that. Apple also strictly focused on Mac OS X Lion, iOS 5 and iCloud, without any breach of information about the iPhone 5.

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