I downloaded the first Beta last Thursday and I'm impressed by what Peter has achieved. The browser is reasonably stable and fast enough to be usable (on Iyonix at least); it is well ahead of Oregano 2 and Webster XL in its ability to render sites.
In use it feels like an alien program running in a RISC OS window, it does crash sometimes (but not often) and it is a little slow - but this is the first Beta!
I was a little wary but I would now encourage everyone to try it. Well done Chocky, I'm off to try the second Beta.