![]() The questions asked participants to rate their proficiency with touchscreen use, playing games on touchscreens, playing games on the Nintendo DS or the Sony PSP, and general game playing. Participants completed a pre-experiment questionnaire asking demographic questions, as well as prior experience questions. The average participant age was 23.7 years ( SD = 3.9). Twelve unpaid participants (9 male) were recruited from the local community. We thus compared the in- game performance of playing a game on the Apple iPhone 3G to playing the same game on the Nintendo DS Lite. The objective of our study was to compare touchscreen-based “virtual” controls to physical controls. It may also be inconvenient to answer incoming calls while using the device. ![]() Another potential issue with this device is that it requires the user to carry the control pad along with the phone. ![]() It is unknown whether this device is planned for Android phones. Console emulation typically violates copyright laws, and it is unlikely that this device will be approved by Apple. Currently, it only supports games for the Sony Playstation, Nintendo Entertainment System, Super Nintendo and Gameboy Advance emulators which require “jailbroken” devices. There remain some major obstacles before this device becomes available. This device has not yet been commercially deployed. The phone or the iPod slides and locks in to place via the serial port allowing the user to use the externally connected buttons for control. Finally, iControlPad is a physical button controller cradle for the iPhone and iPod Touch. The authors suggest that the device might be well-suited to sports games. The device itself uses a compact hand-held design appropriate for mobile applications. The device provides direct transfer of force feedback through frictional touch (with high sensitivity) and requires a relatively small amount of inertia. TouchBall is a hand-held trackball-based touch/haptic interface that affords a great deal of flexibility in directional degrees of freedom. Using trackballs for input in hand-held devices may improve mobile gaming. aiming to implement touchscreen-based controller simulations.
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