"Free" Doesn't Mean "Zero Price" in Japanese

Larry Lessig showed a funny poster at the iCommons Summit in Sapporo, Japan. Richard Stallman said that software should be free as in "free speech" not in "free beer". However, "jiyuu" (free) doesn't mean "zero price" in Japanese, so the message "free beer for 500 yen" makes sense if it's translated into Japanese.

When I invited Stallman to our conference in Japan a few years ago, he said that "free" is a confusing English word and "jiyuu" in Japanese is accurate, so we'd better call it "jiyuu software".