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Looking at interesting and novel interaction devices that would be challenging for students to classify (e.g. in the table suggested by Card et al 1991 [1]) I can across some pretty unusual device. Probably not really useful for an exam but perhaps next year for discussion in class…
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Ever wanted to rearrange the keys on your keyboard? ErgoDex DX1 is a set of 25 keys that can be arranged on a surface to create a specific input device. It would be cool if the device could also sense which key is where – would make re-arranging part of the interaction process. In some sense it is similar to Nic Villar's Voodoo I/O [2].
Wearable computing is not dead – here is some proof ;-) JennyLC Chowdhury presents intimate controllers – basically touch sensitive underwear (a bra and briefs). Have a look at the web page or the video on youtube.
What are keyboards of the future? Each key is a display? Or is the whole keyboard a screen? I think there is too much focus on the visual und to less on the haptic – perhaps it could be interesting to have keys that change shape and where the tactile properties can be programmed…
[1] Card, S. K., Mackinlay, J. D., and Robertson, G. G. 1991. A morphological analysis of the design space of input devices. ACM Trans. Inf. Syst. 9, 2 (Apr. 1991), 99-122. DOI= http://doi.acm.org/10.1145/123078.128726
[2] VILLAR, N., GILLEADE, K. M., RAMDUNYELLIS, D., and GELLERSEN, H. 2007. The VoodooIO gaming kit: a real-time adaptable gaming controller. Comput. Entertain. 5, 3 (Jul. 2007), 7. DOI= http://doi.acm.org/10.1145/1316511.1316518