Gave lifestream a shot. After all, the service provider’s infrastructure is now capable of running it.
It did aggregate content nicely from quite a few places.
But it also somehow broke the right sidebar in half on all pages, and didn’t provide my facebook-updates at all.
The former would be probably be debuggable and correctible, but the latter seems to be a permanent feature in the new privacy-illusion-providing facebook.
Hence, no lifestream here.