User experience (UX) principles can help you to effectively create software for multi-touch, multi-user, and gestural devices such as the Microsoft Surface. These new platforms bring new challenges, some that can be partially solved using current software design paradigms, but many that will require applying new ideas from the cutting edge of Interaction Design (IxD) and Human Computer Interaction (HCI). Challenges related to these newer "co-present" (that is, users who share the same physical space) situations differ from the challenges software designers have long dealt with when needing to support physically distributed users.
view source
