If Apple had created this, especially the notion of a drive for having media etc accessible on your device but not on it, that space lawsuit might make more sense. They are arguiing that Apple is bloating iOS 8 to force folks to buy more icloud. But icloud isn't about extending space so much as mirroring devices as a backup. If these drives were Apple, they might have an argument. Then again, even with this being third party they might try to claim Apple did it to push these items
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Most still don't. I've been at $600 a night hotels that made you pay for in room wifi.
And even if it is free, it's not always fast. Often one network covers a whole floor if not the whole hotel. So if you are trying to watch a movie, having the option to have it on a drive might be appealing to some. If it isn't appealing to you, don't buy the drive. You don't have to after all