API-level difference between Google Checkout and Android Market documented?
问题 PREAMBLE: this question is wildly obsolete. There's no more Google Checkout and no more API. Android Market uses Google Checkout for paid app sales. Google Checkout has a fairly extensive API. The behavior of Android Market accounts is markedly different from that documented for vanilla Google Checkout. Some examples: URL callbacks upon sales don't work Some XML API methods are not supported - e. g. <archive-order> In XML notifications, undocumented elements - e. g. <agent-private-data> under