With nary hours since the reviews went live, the gang at iFixit -- no doubt blessed by the hands of early deliveries -- have procured an iPhone 4. And as is their modus operandi, they wasted no time tearing that sucker apart screw by screw. The teardown is still ongoing, but here's what we got so far: 512MB RAM (confirming earlier rumors), a 1GHz ARM Cortex A8 processor (same as the Samsung Wave S8500, they say), and chemically-strengthened Gorilla Glass for a more torture-friendly front panel. Those two screws on the bottom of the phone can be removed to excise the real panel, but the site says the front glass "will likely be rather challenging [to remove]." The battery, looking rather large even in the pictures, is a whopping 1420mAh Li-Polymer -- comparatively, the Nexus One is 1400mAh and the HTC Droid Incredible is 1300mAh. There's no SIM eject tool with this phone, but a paper clip should work just fine. As for the much-ballyhooed side panel antennas, the phone apparently now "[utilizes] whichever network band is less congested or has the least interference for the best signal quality, regardless of actual signal strength" -- in other words, better call reliability (hopefully). Also helping with overall voice quality is a dual microphone setup for suppressing background noise. Peruse on over if you're interested in seeing a bare Apple device at its most beautiful.
Update: The teardown is complete with a few more interesting bits of information. First, the battery is very easy to remove (and thus, replace) after removing the two screws. The LCD panel is not, however, as it's tighly glued to the glass and digitizer. So if you do manage to break the Gorilla Glass, you'll have to replace it, the digitizer, and the LCD as a single unit. The new AGD1 3-axis gyroscope is thought to be made by ST Micro and Broadcom provides both the BCM4750IUB8 single-chip GPS receiver and BCM4329FKUBG receiver giving the iPhone 4 802.11n WiFi, Bluetooth 2.1 + EDR, and an FM radio.