Growing up from the early alpha build, Firefox 4 has entered the beta metamorphosis for Android and Maemo phones. It includes Firefox Sync (for desktop-to-phone favourites, like Firefox Home will be); add-ons and even the Awesome Bar.
Forgetting shiny new functions for now, it will also run faster and be more responsive and include pinch-to-zoom for multitouch phones. Check out the full list of features over on the Mozilla blog, and if you like what you see, crank up the ol' downloading machine now. [Mozilla Blog via TechRadar]