When Sony officially anounces the UX-50 today, I think they'll really push that the UX-50 is the first PDA device that will be a viable alternative to a laptop in terms of functionality, pocketability and battery life.
I've said in other posts that I don't think the form factor will replace the NX & TG styles, it will just compliment those lines and give users other options in terms of form factor.
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