The new experimental [savestate] object looks pretty cool! I know you mentioned some ideas about this in June, but I'm pleasantly surprised to see the object now. :)

The help patch says it can send/receive multiple list messages. I've not tried yet, but does this mean it saves multiple #A saved ... lines to the patch file? If so, that's pretty useful as it allows for simple 1 line objects and advanced objects which save using key-value pairs. I have a number of both and look forward to dropping all the save state list processing I'm currently doing.