iFixIt has obtained an iPhone 4 and posted a thorough teardown of the device.
Here are some of their findings: ● Storage capacity is not etched on the outer case of the iPhone 4 ● It has an actual capacity of 29.06 GB ● The iPhone 4 is Model A1332 ● 3.7V 1420 mAh Li-Polymer battery ● iPhone 4 has a whopping 512 MB ● Improved audio chamber aids in clarifying sounds leaving the iPhone ● Apple has integrated the UMTS, GPS, Wi-Fi, and bluetooth antennas into the stainless steel inner frame ● A4 processor, manufactured by Samsung ● 1 GHz ARM Cortex A8 core ● AGD1 is the new 3 axis gyroscope ● Samsung K9PFG08 flash memory ● Cirrus Logic 338S0589 audio codec ● Broadcom BCM4329FKUBG 802.11n with Bluetooth 2.1 + EDR and FM receiver ● Broadcom BCM4750IUB8 single-chip GPS receiver ● Front glass panel of the iPhone is constructed of Corning Gorilla Glass