It would be nice to add Applications to solution and that all espaces/extensions will be in that solution. I don't have to add new espaces.
why would you still need solutions?
We are forced to use Solutions *all the time*. Our customers often demand that we physically isolate our environment so Lifetime can't reach across them. :(
I use solutions as well to republish all espaces at night, so all references are right and the latest espaces are used everywhere.