Android/Maemo: With most bugs squashed and all its features in place, Firefox Mobile is looking like a nice alternative to the standard Android browser. It's not neck-and-neck in speed, but it's not slow, either. And the add-ons, desktop Firefox syncing, and better tabbed browsing are pretty intriguing.
It's a pretty big release day for Firefox, with a fairly awesome Firefox 4 desktop release also on deck. Firefox 4 and Firefox Mobile work in concert, to the point of syncing open tabs between the two browsers — like Chrome-to-Phone and vice-versa, but constant and without any button pushing. This release candidate release feels smoother and less heavy than previous beta releases, with the tab controls and settings/add-ons panels loading up near instantly on a Nexus One.
Firefox Mobile is a free download for (most) Android phones and Maemo devices.