Can you somehow add a pause and then the digits of your password when using the voicemail button from the phone screen?
forward all calls to a google voice number. use the google voice app on your phone and never enter a password again.
This is what I have:
*86,zzzz#1
where zzzz is my password.
Thank you, thank you, thank you!
I set mine up this way last evening and it works perfectly!
PS This is one of the features I was missing from my previous BlackBerry use and I am grateful to have this back...