I still think it's a great starting point. You may find that it's hard to get info about custom OSes and after a year decide to sell a book with all the information you found.
The point is keep an eye out for problems you run into, instead of making one up. Usually if you find it interesting, someone else will too. Plus it makes it easier to justify spending the hours necessary turning it into a product.
The point is keep an eye out for problems you run into, instead of making one up. Usually if you find it interesting, someone else will too. Plus it makes it easier to justify spending the hours necessary turning it into a product.