In fact, there is a
school of thought in which writing "god" in
English or other non-
Hebrew language is perfectly acceptable, in whatever form or medium. As the "Judaism FAQ" (http://www.faqs.org/faqs/judaism/FAQ/05-Worship/section-48.html) beautifully points out:
... the Shach (Yoreh De'a 179:11) ruled that "God" spelled in a foreign language does NOT have the status of a "shem" and thus may be erased, lehatkhila. There is a story about Rav Soloveitchik (z"l) intentionally writing GOD on the board while teaching a class and then just as deliberately and intentionally erasing it, so as to demonstrate by his own example that this was not a halakhically a problem.