Fennec (Mobile Firefox) has reached milestone 6 (M6) last week and can be installed to a Nokia N8×0 for testing. Remember, we haven’t reach alpha yet, but we are getting close. M6 adds “tabs” to the browser UI, adds tel: and mailto: support and makes some much needed stability improvements.

We are adding more UI for M7 (August 19th) and are doing additional performance and stability work. Feel free to give Fennec M6 a try and please file bugs. Use bugzilla and the “Fennec” product category.
Install instructions
M6 Readme