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I have a slightly different vision:
Imagine you walk in the office, place you phone on a charger/dock and ... built in projector lights up the wall (or a projecting canvas) and a laser traces a virtual keyboard on your desk ...
Same general idea, your cpu & storage is always with you and is adaptable to the best input/out put mechanisms at hand, whatever you define those to be.
But,would you really enjoy the lack of feedback a laser displayed keyboard would provide? I'm a touch typist, I don't need the letters to actually be ledigble on a keyboard as I never look at them while typing. I think its a terrible idea. Give me a real keyboard anyday. I don't care if its a projector, LCD, Plasma, CRT, or E-ink as long as the display is crisp, readable and sufficiently large enough for me to work.
The Mozilla community had a concept phone with such an idea:
http://www.youtube.com/results?search_query=Mozilla+Seabird+Concept...
A projector built in a smartphone ain't gonna replace a real display for work. For one thing, it just can't put out the same amount of light, and therefore you're much more readily at the mercy of ambient light around you. Secondly, you'll have to place the phone/its doc in rather awkward places so as to keep the image uniform and still not have your head or office tools constantly obscuring the image, let alone the other people in the office!
On a similar note, a virtual keyboard is a lot, lot worse to write on than a real one. It might work for people who have very little need to write anything, but it sure as hell won't work for codecs, translators, book authors, in general anyone who has to write a lot of text on a daily basis.
I would say first and foremost connectivity: a real desktop can connect to a dozen different devices simultaneously. Secondly, performance. To a lesser extent customizability. Fourth, a desktop-oriented OS.
Only the third one is really something that a smartphone can't do and won't be able to do, the other two mostly just come down to time -- ie. technological advancements in CPU/GPU - tech -- and to making a dock with lots of connectors. Whip up an OS that can transition from mobile-oriented interface to a desktop-oriented interface when needed, fashion a good, proper dock, and make it all work together completely seamlessly and you'll have no problems substituting a smartphone for a desktop in most areas of life.
Why should you even need the phone? Imagine you carry a smartcard in your wallet, something with nothing more than basic credentials, like a cypher key. You go wherever you want, plug it into the card reader at the local dumb-terminal, and you are instantly back at your desktop.
If this is the reality you want, all you need is a server account somewhere, and a thin client/dumb terminal. Because all your stuff is on the server, you get the benefits of amazingly powerful hardware (out there on the server) and no risk/expense of loss (lose your card? Get a new one for $1. How much is your super-phone worth?) Furthermore, because all your stuff is out there on the server (sorry, it's called a cloud now, I suppose?) it's available to you wherever you go.
I think we're closer to that reality, and in fact it's not too different from a reality we already had back in the 1970s.
What you described would otherwise be perfectly feasible, but it falls down on its face due to a single issue: bandwidth. Especially outgoing data is still throttled and limited in huge amounts, but even for inbound data you need a very good connection to be able to work at e.g. 1080p resolution with minimal input latency. Now, combine that with ISPs and mobile broadband - operators placing cap on the amount of data transferred and you'll quickly realize that that just ain't only unfeasible but downright impossible as things stand.
OTOH the envisioned scenario reminded me about some past predictions... http://en.wikipedia.org/wiki/Home_computer#The_Home_Computer_.22Rev...





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2006-07-14
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What makes your desktop a desktop? If its anything other than the size of the box holding the cpu, then you can't have much of an objection to this concept.