Earlier this year, Nintendo teased that they were working on new video game hardware with the codename "NX". We were given a few hints about its nature, but told that no real details would be officially revealed until 2016. However, we've heard rumors that initial production would begin this year, and now we're hearing a report from a reputable source which strengthens those rumors. According to The Wall Street Journal, Nintendo has started shipping out software development kits for the upcoming NX system to third-parties. The timing of this report is especially intriguing, as the previous rumor stated that NX production would begin in October.
The juiciest part of this report is that, according to The Wall Street Journal's sources (cited as "people familiar with the matter"), NX features "industry-leading chips." According to sources "familiar with the development plans," Nintendo took criticisms about Wii U's power to heart, and NX is planned to be substantially more powerful.
Exact details about NX's form are not known by The Wall Street Journal, but they state that "Nintendo would likely include both a console and at least one mobile unit that could either be used in conjunction with the console or taken on the road for separate use."
Finally, just like with the previous rumor, The Wall Street Journal expects NX to launch in 2016. However, this release window seems to have come from the projections of analysts (including David Gibson) rather than new insider information.