The WSJ is reporting Dell has built prototypes using Google's Android operating system and Windows Mobile, with two versions including sliding keyboard and touch screens.Kaufman Bros. analyst Shaw Wu says in a note that the WSJ story is consistent with his checks and Dell's phone could drop as soon as mid-February. Wu says it makes sense for PC firms to move into phones as high-tech handsets encroach on the notebook space.Still, it's not going to be an easy road. Apple is the only computer maker to ...

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