Released for Android Developer, Google has started to offer unlocked T-Mobile G1 directly for Android application developer. The Android Dev Phone 1 is a SIM-unlocked and hardware-unlocked device that can be used with any GSM sim-card. Unlike the bootloader on retail devices, the bootloader on the Android Dev Phone 1 does not enforce signed system images. The phone costs $399 USD ... continued »

Non-T-Mobile users can also use the T-Mobile G1 with the unlocking services available now. Android Community is running a giveaway of 3 unlock codes where you can unlock the T-Mobile G1 and use it on any GSM network. The contest is open to any registered Android Community member, you can read the contest detail here continued »