tholzer's Review of the article Double-side Multi-touch Input for Mobile Devices

Review of the article Double-side Multi-touch Input for Mobile Devices

Summary

A paper which describes proposed 3d object interaction on a mobile device using multi-touch touch screens on both the back and front of the device. Tests were performed by connecting 2 ipod touches together.

Pros

  • Interesting article and an Interesting idea
  • Created an effective implementation of the device
  • Mapped Real life interactions relatively well to front and back touch screen interactions.

Cons

  • Seems like holding onto a double sided device could raise issues, You would need to be very careful with how you held it. Same when using 2 hands to manipulate, it maybe become difficult to manipulate objects and hold the device steady
  • Having 5 dots/shadows appear on screen for the back input locations may over crowd the screen, I also wonder how much the brain correlates each dot to a finger.
  • even for a small paper, 3 users is a bit small, Could they not at least get 7 or 8 from around the lab?
  • Study also only states "users found the device intuitive and easy to learn" no examples are given