I would love to have a widget in the lock screen so I can change the volume and skip tracks when my phone is locked! I used to use a competitor system before I got Sonos which had this and it was so useful!!
It seems really long winded and not easy to change tracks or adjust the volume when my phone is locked! I have to unlock it then open up the Sonos app again which is a real pain, it should be so easy.
Sonos is all about simplicity so I don't understand why no one at Sonos has come up with a solution!