Don't necessarily want to labour this KISS thing but...
I was chatting tonight to Stuart Godfree of mkodo tonight at the UKTI Mission reception at the British Consulate here and we got onto the subject of SpinVox. It occured to me that it's a fantastic example of a mobile service that has embraced KISS in spades.
It's so simple to use, you just have to be able to talk into a phone to leave a message and receive a text to get the message. Everyone can use it. Perfect.
Hats off to them.