> can't tell if it's actual speed or "cheating"

I just commented below after looking over their benchmark. In it, the Imba implementation, and it alone, is caching and reusing the rendered todo views (globally, forever -- hello memory leak). Without that, they're only 2x faster than React and Mithril, not 60x.

rAF batching isn't an issue. They perform a render(true) after each change, effectively making all frameworks work synchronously.

Other than that, it is an interesting framework, and I wish them well.