Wanted to give an update:   To quote my CSR "I have submitted your inquiry if the UE 900s will be restocked and if yes, when will it be available as a replacement to our product specialist. I will be updating this case once we have the feedback. Please bear with the delay and your patience is...

Based on my contact with Logitech customer service (at least for Logitech US) they are no longer offering either UE 900 or UE 900s as replacement devices :(   In my case, the right shell of my UE 900 (purchased ~a month ago from logitech.com) broke off. I contacted Logitech CS and they said...