Even he couldn't find a good use for such a powerful device so Nous had naturally put down the idea. If he wanted to enter the phone industry, then he could simply create a phone with a much better and optimized processor.
Even the current phone was already high end so there was really no need to top it instead he should focus on other things hence he came up with the holographic device.
It could be as small as a ring or a simple smartwatch etc and above all. Due to the holographic nature of said device, it would function as both a mobile phone and also a laptop or PC.
He could also put in all the 'quantum' he wanted into the device. Yes, he was now obsessed with quantum technology.
Well, in truth, he was just much more interested in it and wanted to see the idea come to fruition. Anyone who learnt more about them would behave exactly like he was.