I don't really mind that I can't interconnect all of my webservices/online personas, i.e. in the sense of all n services being connected with the remaining (n-1). This does not seem to make a lot of sense for most of those.

What I would like to be able to do is interact with the services via a central location such as ff - not just consume/aggregate.

Along those lines, the ff team has included a "feedback channel" (i.e. easy replying) for twitter which serves the purpose very well. If they'd do the same for comments on flickr, disqus, youtube (you get the idea) accounts, I'd be even happier. Their service would allow for some sort of two-way centralized communication that would save me from touring all of the respective sites for even the most mundane tasks.

In general, I agree with you on openness and standards but can't say that I'd be currently missing them WRT this domain/application.