Yes, the Sticky Notes I commented on originally is a Microsoft product which is supposed to have been upgraded in some interesting ways with the Anniversary update, but not for me. So I found it in the Store and re-installed it but it still does not have the new features, such as integration with Cortana, inking / Workspace, etc. For example, with the new version if you enter your email address, select and click on it your default email is opened -- but not on my machine. Also, the new Note has a minimum size bigger than what I want. Some alternatives I have looked at are better featured but to my surprise do not display the Sticky on the PC desktop but on a dedicated board.
Having started to examine this topic I have concluded that the following are the main features I am after:
1. Stickies are displayed on the desktop --- MS app does this
2. Stickies can be resized, down to a fairly small size --- my 2-in-1 transformer style PC only has a 10.1 screen size
3. Synchronisation with other devices, such as my Windows phone
The desktop Gadget meets these requirements and also has syncing to my Android tablet, plus Sharing and backup online as well as some other features. In comparison, the MS offering without the Anniversary additions is weak.