Although the decision to "de-commission" the Desktop API was communicated to Sky partners in July, it didn't get much attention at the time. Now notices announcing that apps and devices will stop working in December have started to appear when users download the latest version of Skype and try to start a third party app.
So what are developers expected to use to create future apps — for mobile, web and desktop apps?
Currently the replacement URI API hardly justifies the name. It is a Rest-style API that provides very few facilities — place a call or start a chat and that's about it. This limits what you can now do and the idea that you can bring existing applications up-to-date is laughable.
Developers whose apps are affected are blaming Microsoft, which acquired Skype in 2011, and certainly it can be seen as part of Microsoft overall policy of deprecating the desktop while promoting mobile devices. By killing the API Skype is killing existing apps and existing add-on hardware.
If you want to make your voice heard sign the petition:http://www.change.org/en-CA/petitions/skype-microsoft-provide-continued-support-for-third-party-skype-utilities-that-have-become-mission-critical-to-skype-s-users