Gmail is about to get dynamic. Alphabet's Google on Tuesday plans to demonstrate a software programming system that would enable emails to feature continuously updating information and greater interactivity. Users could see automatically updated flight information in a booking confirmation email. They could fill out surveys without leaving a message or see close-up shots of products in a marketing pitch without opening a browser window. The envisioned changes are an outgrowth of Google's AMP project, or accelerated mobile pages, Aakash Sahney, a product manager overseeing Gmail, said in a blog post Tuesday. AMP is a set of programming intended to make webpages load faster by stripping out layers of technology. It has drawn praise from publishers such as Hearst Corp and the Washington Post for making their websites more inviting for users. But some web developers have expressed concern that Google is getting too much say in how the web operates.