.@mochi_wsj casually drops this: "(...) that NX would be a handheld-console hybrid that would be compatible with its own smartphone games."— Dr. Serkan Toto (@serkantoto) July 27, 2016
The full news article about this subject is "locked" behind a subscription service, but Takashi Mochizuki of The Wall Street Journal wrote the following statement:
...a person familiar with the matter said NX would be a handheld-console hybrid that would be compatible with its own smartphone games.
Although Mochizuki is often credited as being a reliable person when it comes to news, for the time being, this information shall be considered as a rumor. However, considering that a large amount of Nintendo NX information was released yesterday, this may provide some more insight as to whether or not all of this information is true.