CallWave.com have made available a really cool Vista Gadget which allows you to see your voicemail on your Vista PC!
To use it - you have setup an account with them (they support most of the US operators).
After setting up an account you get an email with .wav attachment anytime someone leaves you a voice mail on your mobile phone.
You can then see those voicemails and listen to them via the Vista Gadget!
I'd love to see a Vista Gadget that allowed you to access your Windows Mobile Device! Anyone got one they are building?