Nice to have another option, but I'm skeptical he can pull it off. Building an internet scale search engine is a huge undertaking. You can build an index on what is called the"head" and show results from the most popular web sites, but to cover what's called the "tail" requires many tens of thousands of servers. To show results with good relevancy requires hard work on algorithms and lots of data science. To show results with the awesome low latency that Bing and Google provide requires even more engineering, expensive infrastructure such as edge networks, and (again) many tens of thousands of servers. To make money on it with ads is also very challenging.
And I am an engineer that worked for a number of years on one of the two major search engines, so I'm not pulling this out of my kiester.
All that said, I wish him success. More choices is better.