Cool stuff, but can I be crotchety for a sec? I wish we could dispense with all of the cute names given to features, techniques, abstraction, etc that are not intuitive until someone tells you what it means.
No one would have any idea what the hell "tab warming" means without being told, which seems unnecessary for something that is a simple concept to understand. It increases the cognitive load in a field that already has a lot of it. Please just give your hack and techniques descriptive names; or better yet, think long and hard whether or not the thing even needs a name. "pre-render on hover" would suffice. It's one more word and I know exactly what it means instantly.