N.T. Wright on “God” and “god”

If you have sharp eyes you may have thought me guilty of a horrible typo in my recent N.T. Wright post. I left “god” uncapitalized in my quote from The New Testament and the People of God. Perhaps I should have added a [sic], because Wright is the culprit, not me! Here is his justification for the apparent sacrilege:

I have frequently used ‘god’ instead of ‘God.’ This is not a printer’s error, nor is it a deliberate irreverence; rather the opposite, in fact. The modern usage, without the article and with a capital, seems to me actually dangerous. This usage, which sometimes amounts to regarding ‘God’ as the proper name of the Deity, rather than as essentially a common noun, implies that all users of the word are monotheists and, within that, that all monotheists believe in the same god. NTPG, xiv