I hate to mention this, and I know I will probably get flamed for it, but am I the only OS4.1.5 user that has any concern that the amount of time coding Timberwolf is taking coding time away from finishing drivers for the SAM460ex and AmigaOne X1000, plus other parts of OS4.1.x?
Don't forget, part of the reason for porting Firefox was to find any deficiencies in OS4 that would prevent porting such a complex program over to it. In their porting efforts, they find areas where the OS needs to be improved or new functionality that need to be added and then they proceed to address those issues. There was a reason why the Timberwolf Beta REQUIRED Update 4. So don't fret; I'm sure the time they spend coding Timberwolf does directly benefit Os4.1.x.