Lunascape is a new web browser that handles all three major web rendering engines — Firefox's Gecko, Internet Explorer's Trident and WebKit (which is used by Safari and Chrome).
Lunascape Corp., a Tokyo-based web software company, offers the browser
as a free download. Lunascape 5 Alpha is Windows-only and the first English version of the browser (a Japanese version dates back to 2001).
Lunascape 5 is an interesting alternative for people (like me) who primarily use Firefox but keep Internet Explorer as a second browser when they encounter rendering problems (i. e. on some of the few IE-only and IE-optimized web pages out there).