The binding os Isaac publisher Nicalis looks like may have got themselves in a bit of hot water over a recent tweet. The publisher posted an image of a Switch UI on twitter in an attempt to showcase that The Binding of Isaac: Afterbirth+ was available for the upcoming console. No problems so far, except that the image also showed the games Cave Story and 1001 Spikes, along with the as yet unseen UI system.
The tweet was very quickly taken down once the error was noticed, but not before a copy was made:
As speculated by VG 24/7, is it very likely that Nicalis have broken a Nintendo NDA by tweeting the image above.