Got tired of waiting myself and bought one off eBay for $1.88. Got it in about two minutes and it worked like a charm. Love it so far, as I mainly wanted it for the voicemail feature. If you're tired of waiting, hit up eBay.....
Not real sure why that is funny. I would pay that for a useful app in the market, and to me, Google Voice is VERY useful. Plus it sure beats paying Verizon for the crappy visual voicemail they have. But I'm not a very patient person either, don't plan on waiting months for Google, plus if and when I do get my invite, I will surely pass that along to someone who needs it on a forum somewhere.