This is some encouraging —and rather entertaining— research. While Dr. Nicolelis's objective is to empower handicapped individuals, research such as this often results in dividends which are difficult to imagine.
For those of you who follow interface developments and haven't had a chance to try devices such as Emotiv Systems' EPOC game controller, you should think about tracking one down and testing it.
Brain-computer interfaces are still quite primitive. But as we enter an era of wearable computing and very low-cost EEG sensors, it may soon be time to imagine thinkput as a natural extension of device interfaces.