I missed the announcement of cross-account access. This seems great, thanks! STUPS looks interesting. What scares me a bit about these suites that provide many

I missed the announcement of cross-account access. This seems great, thanks! STUPS looks interesting. What scares me a bit about these suites that provide many abstractions on top of AWS is how they work in mixed environments where some resources have been set up and are managed out-of-band. I understand that the purpose of STUPS for example is to provide a higher-level interface to AWS, and that having many AWS accounts avoids these mixed environments. Perhaps it's just me suffering from analysis paralysis. I kind of want there to be one or two leading suites of AWS PaaS tools to choose from, whereas the market today seems fragmented with new tools popping up all the time. For the moment I'm betting on HashiCorp. :)