Got me self a Donut

Got my self the android 1.6 update. New features like the Quick Search (across history, contacts, bookmarks, web etc), Gestures, test to speech and more.
Update 1.6 highlights

As before get it here:
HTC Developer Centre

Interestingly note that the radio image is the same for 1.5 and 1.6. So one can skip this part if one is already updated to 1.5.
download the SDK
download the radio image
download the system image
sudo ./adb devices
connect device using USB. But, DONOT mount from phone
sudo ./adb push ../../ota-radio-2_22_19_26I.zip /sdcard/update.zip
sudo ./adb shell sync
start phone in recovery mode:
press HOME button while restarting
Alt+l
Alt+s
HOME + BACK
done!

NOTE: had to erase the user partition this time as many apps did not work after the update.
enter fastboot mode (hold the BACK key while starting)
sudo ./fastboot erase cache
sudo ./fastboot update signed-dream_devphone_userdebug-img-14721.zip -w

to get to the settings menu (to enable wifi) without having a data connection in the FASTBOOT mode try this:
sudo ./adb shell
$ am start -a android.intent.action.MAIN -n com.android.settings/.Settings
Starting: Intent { act=android.intent.action.MAIN cmp=com.android.settings/.Settings }

From:
Unlocking G1 or ADP1 without sim card