Can I log into multiple instances of discourse simultaneously?

[tophee (Christoph)]

@pfaffman

You can configure one Discourse as an SSO and the others as clients of the master.

While this is, of course, possible, is anyone aware of any site actually doing this? Although I think it is usually better to use a single instance rather than multiple, I am, as I mentioned elsewhere, curious how discourse might eventually be able to integrate multiple forums into a more coherent user experience…