Hi, It is really a good plugin and have brought me many extra visits.Thanks for your great work. But there is still a problem that the meta elements can not be translated completely. I have reported this problem before.
Our site is http://www.arturf.com/, and I used Yoast WordPress SEO, latest version. You can find the problem I mentioned when viewing the recourse of post/page
By the way, do you have a standard alone service for normal PHP site? I found your showcase Colnect is not powered by wordpress. http://gtranslate.net/ provide this service, do you have similar?