I kinda wish Google had better versioning in their infrastructure. While I used neither of these products, their disappearance makes me reluctant to adopt Google products for any core infrastructure. If I buy a program from Microsoft, and Microsoft discontinues it, I get to keep using it forever. If I do the same with Google, since I'm not managing my infrastructure, at some point, it just goes away. It shouldn't be that hard to fork off sets of servers to run frozen, legacy applications, or older versions of non-legacy apps.