Tag - A4
The iPhone Dev Team has detailed a very early jailbreak method for the now official iOS 5.1 update. Beta 6 of redsn0w 0.9.10 will crack all devices based on the A4 and earlier. With the exception of iPhone 3GS units with older firmware, however, the jailbreak is tethered and will need to be reused every time the device is given a hard reboot.
The overhauled Apple TV costs less than $64 to make, even though it sells for $99, says iSuppli. The research firm notes that the most expensive part in the set-top is actually Apple's custom A4 processor, valued at $16.55. By radically reducing the cost of components in the new model, it should theoretically be more profitable than the older one. iSuppli comments that the use of the A4 may provide special savings, since the chip is already installed in the iPad, iPhone 4 and fourth-generation iPod touch.
DIY repair shop iFixit this afternoon finished a teardown of the new Apple TV. The close look reveals that the hub has the same variant of the A4 processor as the iPod touch and has 256MB of RAM, rather than the 512MB of the iPhone 4. Apple has also put just a single 8GB Samsung flash chip to both hold the OS and cache movies during the streaming process.
Steve Jobs in an e-mail this evening suggested that Apple TV delays won't prevent the media hub from arriving before the end of September. A buyer worrying that the Apple TV would have to ship early next week to make the target was given a simple "yep" answer by the executive. It's not certain that the Mac Rumors transcript is a confirmation, as a chance exists that Jobs was simply reinforcing the writer's views.
iFixit continued its investigation of the latest round of iPods today with a teardown of the fourth-generation iPod touch. Going deeper than the FCC look, the repair shop confirmed that the Wi-Fi antenna has been moved to the front, eliminating the need for the black plastic window on earlier models. It also confirms that Apple is using Toshiba flash memory for the main storage on the iPod; other Apple devices usually depend on Samsung.
(Updated with official info on Nano and iOS) A brief check of the Apple TV's technical specifications reveals that it is actually based on an A4 processor, like the iPad, iPhone 4 and the new iPod touch. The architecture is an ARM design customized by Apple, nominally with mobile products in mind. In the Apple TV it replaces a relatively low-grade Intel chipset.
In sync with the launch of the fourth-generation iPod touch, the FCC has posted Apple's filing for approval in the US. The shots show that the iPod touch manages to have a completely internal antenna despite the lack of the black plastic covering from the back. It also notes that the antenna has an insulator to reduce interference, though this is more likely to be for internal interference since the steel back isn't known to be used for reception.
The iPhone 4 is Apple's most expensive ever phone to make short of the original phone itself, a price breakdown by iSuppli has found. A 16GB example costs about $187.51 in raw parts; the bill is less than the $223 of the 2007 original but more than the $173 iPhone 3G and the $178.96 iPhone 3GS. Most of that cost increase is attributed to the LG Display-built 960x640 IPS screen, which is estimated to cost $28.50 all by itself.
A quick dissection of the iPhone 4 by iFixit has discovered that it theoretically has performance as least as good as an iPad. The already-known A4 processor should run at the same 1GHz clock speed as seen in the Apple tablet, in spite of the smaller size, but with 512MB of memory should be better with multitasking. Whether Apple has quietly underclocked or otherwise detuned the A4 isn't known, but early benchmarking has suggested it's faster than an iPhone 3GS but not as fast as an iPad in practice.