On our Posterous site, we previously discussed ReQall, a task manager and reminder system that allows you to record tasks with your voice, using some pretty impressive voice transcription. But why stop with tasks, calendaring, and reminders? What if you could use your voice to do much more, such as to send email and text messages, listen to and send messages on Twitter, and have web sites be read to you? Well, you can, using Dial2Do, a service that lets you call a phone number, and perform certain tasks with your voice. Read on for the myriad of ways in which you can use Dial2Do to stay on top of your life.