This weekend I had a project that required me to create a live dashboard. I found Telemetry (http://telemetryapp.com) and it looked perfect for what I needed. You simply submit new data for the dashboard via their API. They have clients for Mac, Windows, Mobile and Web to view the dashboard. Unfortunately they only had a Ruby Gem to interact with their API. I had a requirement that it needed to be in PHP, so I was on my own.
Over the course of the weekend I built a fully-functional library for Telemetry in PHP and it supports all of their different data flows. I put it up on GitHub so others could use it.