That's cool and again thanks for your effort and sharing the info with us. The 240GB and 480GB mSATA drives are much more affordable than other options (CF cards, etc) for the same storage size, and for me personally I love rockbox so your RB patch for the mSATA is exactly what I am looking for. FYI, I am currently using a 256GB CF card for my diymod also rockboxed. It works great.
By the way, are you one of the Rockbox developers? Torne tried to resolve the rockbox issue previously and I just read your feedback in this post.
I am not on the rockbox development team but I did read through the rockbox forum thread during my patch development. Torne's patch solved the boot error -11 issue and is part of the patch I applied, Definitely we need to thank Torne for his work.