Hi, nice to be here.
Yes, basically I read my books on various kindle apps (android, iOS and occasionally the PC version, about the only thing I don't use is an actual kindle.) And since they have a lousy interface for maintaining reading lists, and limited space, I try and keep relatively few books on there at any one time.
I've organised calibre by tag, and sync tags to and from goodreads (both add to shelf and sync from shelf). My thought was that I'd like to have sending to my kindle and adding to to-read shelf of goodreads synced. Just to cut out a few keystrokes basically.
Thanks for the quick reply.