One of the biggest ever homebrew scenes is and was the PSP Scene, it put Homebrew in the mainstream eye and catipulted this site into the worlds top 2000 sites at one time (sadly not anymore), the homebrew scene has obviously died back since the glory days but its still an awesome scene, our PSP News site was in the top 3 in the world at that time and has thousands of pages of homebrew and emulation news for the PSP.