If you haven't sent one already, a polite follow-up email would probably be more useful - I have a couple I haven't got to as I've been out of town all week, but from a quick search I can't figure out if one of them is yours.
Keep in mind that pretty much everyone working on these is doing so voluntarily, so they sometimes take a little bit. Given that anyone asking now has waited 6 months already, a few more days hopefully won't be too detrimental.
That said, sorry for the delay.