For all that asked (and for those that didn’t) to have XML documentation files here they are.
Just unpack them in the folder where you referenced dlls are and you’ll have intellisense.
XML documentation files
This should really be packed and placed in the bin folder by the installer. No harm to including this in a default installation!
Totally agree with Fredrik! This is so much help for developers working with EPiServer.
I'm working with EPiServer.Common.Queries and no documentation popup appear. I think XML doc for EPiServer.Common is missing. Can you add it?