You can download the latest Icaros Desktop ISO from here -
http://www.icarosdesktop.com/dl.htmIt has the Odyssey web browser included.
It still requires specific hardware but a lot of common cards and shipsets are covered these days. Best just to try it on your system and see what works.
Thanks to the Poseidon USB stack, it supports USB devices very well and is more configurable than other OSs you're probably used to (unless you're used to AmigaOS3, then it's the same).
If you develop in C for Aros it takes very little effort to port to other Amiga OSs.