Majora's Mask? Not original? Get out of here. If Majora's Mask were a continuation of the Hero of Time's travels in Hyrule, it would have been more of an expansion to Ocarina of Time, and it would have been crap. Majora's Mask was fantastic, all it has in common with OoT is that it features the same Link, otherwise it's pretty much original.
Phantom Hourglass doesn't look as creative as Majora's Mask but it does look pretty damn good. The stylus controls look like they're going to work out great, I can't wait to test them out. I can't wait for it.