Hardware acceleration of both 2D and 3D UI elements -- shown off to great effect by Google's Hugo Barra, who managed to scroll through three lists simultaneously without inducing any lag on the Motorola Xoom -- should make Honeycomb as delicious to look at as it sounds, while our personal favorite, the new tablet-specific email interface, should be part of Gmail yesterday.
ENGADGET: Watch Google's Android event in full: Honeycomb on the Xoom, Android Market website, in-app purchases, and Cee-Lo Green