@arnljot
I've been a casual programmer for the last 10 years or so, and I'm not at all interested in making money off the things I do. (I'm also not a GPL advocate, so I guess that makes me a computational moderate.) There are more than a few capable programmers here and elsewhere, but porting a project like Mozilla takes time. Most folks like to get outside a bit, spend time with family and friends, sleep, and live their lives.
Programmers are also notorious for getting bored or disenchanted and moving onto other projects. What amazes me is not the programming itself--anyone of average intelligence can learn to do that--it's the steadfastness (and often temerity) with which it's done.
Regarding legacy Amigas, they're certainly capable of running a modern browser, but users would have to be realistic about performance expectations.