A patent from Google that was just announced promise to bring commercials to you on your mobile phone.
This patent is going to make life very interesting for all the players in the mobile eco-system. It gives Google, in a word, LEVERAGE.
Already they have the sales engine in place. Add in the Android OS (Dear Mr. Mobile Operator--use our phones if you want ad revenue via any ringback process), GoogleVoice - (Dear Mr. Operator-we don't need you, as your customers already want us) and now this.
Someone has been busy playing Machiavelli.