Google's Android Open Handset Alliance Project unveiled the Android Dev Phone 1. The Android Dev Phone 1 is hardware and sim unlocked G1 in black with a special skin aimed at developers.
The Android Dev Phone 1 sells for $399 in 18 international markets.

The device ships with a system image that is fully compatible with Android 1.0, so you can rely on it when developing your applications. You can use any SIM in the device and can flash custom Android builds that will work with the unlocked bootloader. Unlike the bootloader on retail devices, the bootloader on the Android Dev Phone 1 does not enforce signed system images. The Android Dev Phone 1 should also appeal to developers who live outside of T-Mobile geographies.

To purchase an Android Dev Phone 1 device, you must first register as an Android developer on the Android Market site.
Once you've logged into your developer account on Android Market, you can purchase the device by clicking the "Purchase" link. To accommodate demand, there is a limit of 1 device per developer account, for now.
More details on site. Via Gizmodo.