User talk:Abb sad

December 2017
Hello, I'm Walter Görlitz. I wanted to let you know that one or more of your recent contributions to Talk:Mobile app development have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks. Walter Görlitz (talk) 15:20, 5 December 2017 (UTC)