How to disable screen lock on my HTC desire Z?
is there any way to do this ? kinda unnecessary on android
Use the app called "no lock". It will allow you to toggle between having a lock screen and having none.
Go to Settings --> Location & security settings --> Set up screen lock --> None.
Note: this may be a CyanogenMod feature. I can't remember if Stock Android allows this or not (can someone verify this for me?)