Just think, the GPU from that machine (or a close relative) is now sitting in the iPhone 
It's certainly not the same GPU. Yes it's the same company, but that's hardly surprising as PowerVR have now concentrated on the portable market. The PowerVR MBX is used in many phones, including a whole range of Nokia phones, along with some from Sony Ericson, Motorola and Palm. PowerVR GPUs in general have been used in a vast range of products (see
http://en.wikipedia.org/wiki/PowerVR ).
