Fennec – Firefox mobile if you say – is ready to try on almost every platform: Maemo, Windowns, Mac OSX, Linux. It’s basically the binary files, ready to run.
It’s really nice interface for touch environment if you ask me, really clean, pretty nice for small screen device like Nokia N8xx – Maemo platform. I’m really happy to see another good browser engine on mobile device, besides WebKit.
Give it a try if you have <7” device, here, otherwise, you won’t find any advantage of Fennec over Firefox ;-P