@thenzero I'm also very interested! I recently got back into PPC/HPC devices, and during this week I've been trying some browsers. Out of all the browsers I tried, the one that work best on my device, in my opinion, is Opera 8.60. It's actually a very capable browser. Unfortunately the clock is ticking for me, and in less than 30 days the joy will end.
I would also love to obtain a license.
Open sourcing the browser is another option (as suggested by opt in this thread), which I would recommend you to consider as well. It could mean more improvements and support for newer standards. The HPC development community is not huge, but it's still very much alive (disclaimer: I am in fact part of it)