Xbox One and PS4 CONSOLE key-features differences; including XBL & PS+ comparisons

[mibuokami]

Additional features - not sure if relevant.

PSN has UStream integration similar to XBL Twitch deal.
PS4 has replaceable Internal HDD. (XboxOne's internal HDD is not replaceable)
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XboxOne can utilized external HDD as additional data storage.
XboxOne has an additional USB 3.0 port (3.vs.2 for PS4)