The SDK as it turns out is a gigantic archive of stuff that is geared towards running Android on the A20.
The OlinuXino-Micro board sells for 35 Euros. No telling where the company is located, but it doesn't look like China.Using the download link above, I obtained a 3.8 G tarball "A20.tar.gz" This expands into about 8.2G of interesting stuff.
Tom's electronics pages / tom@mmto.org