Looks really nice. Maybe I'll finally get around to reading SICP, given how often it seems to come up in discussions here. :) That said, it seems that the font

Looks really nice. Maybe I'll finally get around to reading SICP, given how often it seems to come up in discussions here. :) That said, it seems that the font in this version is insanely large. I know large fonts are trendy right now, but 27pt text is just too much for long-form content like a book. (Compare with printed material at 10-12pt.) If the author's trying to improve readability, I'd recommend a higher-contrast font color instead. On the other hand, the PDF version looks fantastic and addresses both concerns.