I welcome a Servo based browser with an HTML UI.<p>An one-page email app running on Servo that is inspired by GMails interface would be great.<p>At the moment I use Thunderbird, Outlook 2010 and GMail. Outlook has good calendar integration and GMail the better tagging, search function and UX.<p>Opera 12 had an inbuilt HTML+JS based email client. Moving to Chrome&#x2F;Blink with Opera 15 they stopped shipping the inbuilt email client.