iFixit

The Qualcomm MDM6600 chip supports HSPA+ data rates of up to 14.4 Mbps and CDMA2000® 1xEV-DO Rev. A/Rev. B

• You can view the datasheet for more information on the chip.

This is the same chipset as the Droid Pro world phone. It supports both GSM and CDMA—which means that Apple could have supported GSM!

Why didn't they? It may be that it was easier to design antennas for a CDMA-only phone -- this phone supports two cellular frequency bands, while Apple supports five bands in the GSM version.

Of course, there's no way it could be a real "world phone" without a SIM card slot.

Holy haberdashery, Batman! The iPhone 4's vibrator received a complete makeover.

• Rather than using a rotational electric motor with a counterweight, the Verizon iPhone appears to utilize a linear oscillating vibrator for call/message alerts. Based on the patent information around this technology, we think this may be a Samsung part.

Our tests show that the new vibrator has quieter, softer feel, and makes a better sound when on a table.

The display assembly appears to be identical to that of the GSM iPhone 4 at first glance.

• UPDATE: Upon further investigation, the mounting tabs are in drastically different locations for the two display assemblies. This means the two assemblies are definitely not interchangeable. The Verizon display is on the left in the second photo.

We'll have replacement parts and a detailed repair guide posted very soon.