Not a threat from Intel to AMD, why?
Since it is only a prototype, it is too early to tell if Intel's proposal is a good challenger.
Like a comparison between a barebone racing stock car and a comercial model.
AMD already has very good options for light laptops with good performance without breaking the bank. Why wait until someone releases, and reviews its models to see how good it performs?
My opinion is to wait to see how Intel's Tiger Lake performs ONLY if you need a laptop to work with Photoshop or Premiere or if you work with MacOS.
Roland Moore-Colyer's reason for waiting to purchase a new laptop may hold water for the 'early adopter' set, or those that need to have the latest & greatest. A more practical reason to hold off on purchasing a new laptop until these new models land is that prices on the current top-of-the-line models will drop when replaced with the new models mentioned in the article. The same goes for every model down the line as newer, higher priced models drop down to replace their older, lower priced predecessors in a 'trickle down' effect.