OK before I get all sorts of abuse.. 
Has the Duet now been discontinued?
It can be purchased through the DSG group for near enough half price.
The Logitech website shows it as available at full price, but when googling SB Duet discontinued? various links are now showing comments to suggest the Duet has infact been given the chop.
Any truth in this please guys?
That is about as "official" as you are going to get. When the player is no longer available (no longer in stock) the Logitech SqueezeBox web site will say that item is discontinued or that item will be removed all together.
Touch and Radio are still in production, their Revue product is being incorporated into MySB and SBS server, so there is no indication they are discontinuing the entire SqueezeBox product range any time soon. In fact it is more likely there is a new player model (or two) in development.
Even if they stopped all support you would still have what you have now: SBS server for your PC/MAC/NAS
The original SqueezeBox player, the Slimp device, is still supported today ten years later.
The only real worry in your scenario is ending MySB.com, but as that is being updated for the Revue player, so that is likely another two year commitment at minimum. Any new player offerings and you are likely extending MySB support another 4 years if not longer.
Enjoy the music and quit hand wringing over the speculative demise of the SqueezeBox. 
