I saw something that I could not get out of my head since. Amazon Elastic Compute Cloud (EC2). In short, rent Linux machines $.10/hour (hour is the smallest time unit).
I could use this for testing. I could really use this.
At the moment I test with one machine that has enough CPU and RAM to open one VMware image with application I test running inside. I have six independent test suites for the application, and it takes about an hour to run them all sequentially inside the image.
I could speed it up. I could rent 6 machines and run all tests in about 10 minutes. Since I must pay for the whole hour, it would cost me about $.60. I am not in such a hurry every day, but there are days where such speed in executing tests would make a difference.
The only problem is that my application and my tests run on Windows. But since it is VMware image, I can run it on Linux.
Now, let me day dream for just a minute.
Amazon starts to bill by the minute (or second). While I am dreaming, they also lower the prices. I fragment my test suites, so every takes about a minute (or less). I could rent as many machines I need and be done with testing in an minute. Of course, it is all done automatically. Every time a developer commits new code, a machine is automatically rented, set up for testing, multiplied (so I do not have to spend time powering up, getting new application code, building it, getting new test code...).
I will really have to check this out in detail.