Finally! U.S. users of the Android OS phone or G1 can get their 1.5 Cupcake update. Follow the instructions below to do so, I have already updated with this file and it is the Official U.S. version of Android 1.5 Cupcake.

I am very impressed with this update (that finally has arrived). I have seen my share of videos of the updates but after having used it, it feels so much better than what I was expecting which was good already. The on-screen keyboard is nice, it takes some getting used too. Some larger fingers can have a harder time getting use to. I think I will just be using the on-screen keyboard for quick writing and not long text messages or anything. The user interface updates are even more beautiful.

Disclaimer: I am NOT responsible for anything that may go wrong while updating your phone. Make sure you have a good amount of battery, to be even safer plug the power cord in.

Instructions:

1. Download: https://android.clients.google.com/updates/partner/signed-kila-ota-148830.de6a94ca.zip
2. Rename this file to update.zip.
3. Mount your SD card to your PC through the phone.
4. Save ALL the contents of your SD Card to a new folder on your PC.
5. Delete all the contents off the SD Card and put update.zip onto the SD Card.
6. Shut down your phone.
7. Hold the HOME button as you press the POWER button to turn on.
8. When you see a yellow triangle icon appear on your screen, press and hold ALT+L.
9. When a new screen appears, press ALT+S to apply the update.
10. It will go through a serious of verification and updates here.
11. When told to, press the HOME and BACK button.
12. The phone will restart twice, this may take a few minutes to complete.
13. Now re-mount your SD Card, copy all the files you backed up, back and delete update.zip.
14. Now just enjoy all the new GREAT features in Android 1.5 Cupcake.