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With WiFi support in OpenMoko, this enables:
Assorted WiFi power reduction tricks may be used to increase battery life.
WiMAX is a high-speed data service, similar to wifi, though longer range and newer. Where service is available, this would complement WiFi. Unfortunately, unlike wifi, frequencies vary worldwide, so global usage may be complex.
The current Neo1973 processor does not have a camera interface. A chip with the MIPI interface might be used as a future proof solution.
Main article: Spell weaving
See also this page containing a link to a video demonstration.
With help of mouse and keyboard, a TV output may be very useful. Or to watch photos taken with a digital camera on holidays. Or for showing a slide presentation off.
A model with a larger screen would be of use to many, especially with multi-touch. Higher resolution is probably less important than size until the DPI drops below 150 or so.
At the DisplayWeek2007 several embeded video projectors for phones were presented.
Those projecting devices are not much bigger than a cell phone. A LED-laser projects a sharp image at variable distance
Could such a device be connected by bluetooth?
Explay uses two a red and a green laser-LED as well as a conventional blue LED in its "oio". Blue laser-LED are to expensive for customer products. The light passes a transmissive WVGA-LCD(640x480) and goes on to the screen. Its frequency is 60Hz and the projecting distance can be varied from 20cm(8inch) to 2m(80inch) with a sharp picture. It consumes about 5W and its light power is about 6 lumen. As the sharpness does not depend on distance, one can project the image on screens that are not plane. Like someones t-shirt.
Microvistions PicoProjektor however uses soley laser-LEDs. It is also 60Hz though 800x600px or 800x640.
Potential problems might become the approval of a laser class 3 device.
Final prices could be about $300.
Taken from: http://www.heise.de/newsticker/meldung/90141 (german)
Hardware acceleration for video playback.
3D hardware acceleration for 3D games, GUIs, etc. (maybe a PowerVR MBX Lite ?).
Possibility to use something like Eyeglass Mounted Display.
Or electronic paper display, EPD is used in many new devices such as the new Motorola motofone, sonys new e-reader and Irex's iliad. The technology provides thin, flexible, power saving screens using new eink technology. This technology could cut the weight of the phone and its power usage. For more info see: eink's website.