Introversion today announced the start of the beta test of Multiwinia. This beta build pits 4 AI players against each other and reports back to Introversion with frame rates, hardware stats, problems etc. During this phase Introversion are looking at hardware compatability problems, frame rate issues etc. After this, playable versions will be rolled out for the testers to break, gradually adding applicants to the test group in batches of 50 or more. Click here for details.