During whole my life the I have been familiar with cryptocurrency, I have seen plenty of projects that wanted to create a crypto mobile phone. Whether it was going to be just a mobile for calls, mobile that encrypts calls, mobile that farms tokens (that even sounds funny), whether it was going to be a mobile that was instantly an app, bank, and cryptograph, all projects failed. Every single projects that ran startup, ico of any other way to raise money - every single one of them failed. Among several tens, only one or two presented a prototype.
Same faith is going to happen with Solana. No matter how many millions they would spend on development, firstly they cant compete with current mobile market giants, secondly because users will never move from iPhone, Samsung, Xiaomi and etc. No matter how much will be spend on marketing, only few enthusiasts will buy them.