<p>IDG News Service - Google responded to allegations it stopped the launch of a new Acer smartphone in China, by stating that the handset's Chinese-developed mobile OS was "apparently derived" from Android, but still not fully compatible with the Android ecosystem and its apps.</p><p>Taiwanese PC maker Acer was originally scheduled to launch a new smartphone on Thursday that was to use the Aliyun OS, a Linux-based mobile operating system developed by a subsidiary of Chinese e-commerce giant Alibaba Group. But the launch event for the device was abruptly canceled, with no clear word from Acer on why.</p><p>Alibaba, however, quickly responded and alleged that Google had threatened to revoke Acer's license to use Android if it went ahead with the launch of the Aliyun OS smartphone.</p><p>Google initially declined to comment on the matter. But on Saturday, Andy Rubin, head of the company's Android development team, addressed some of the controversy in a blog post and also on his Google+ page. He alleged the Aliyun OS was based on Android, but incompatible with the Android ecosystem.</p><p><a href="http://www.computerworld.com/s/article/9231296/Google_blocked_Acer_smartphone_on_Android_incompatibility_concerns">Keep reading...</a></p><p>Read also:</p><p><a href="http://online.wsj.com/article/SB10000872396390444709004577652362341112898.html">Google Objects to Acer-Alibaba Phone</a> (Wall Street Journal)</p><p><a href="http://www.businessinsider.com/acer-cancels-smartphone-launch-with-alibaba-at-last-minute-2012-9">Acer Cancels Smartphone Launch With Alibaba At Last Minute</a> (Business Insider)</p><p><a href="http://www.businessweek.com/articles/2012-09-13/the-acer-smartphone-that-never-was">The Acer Smartphone That Never Was</a> (Businessweek)</p><p>Explore: <a href="http://news.google.com/news/more?pz=1&ned=us&ncl=dnJkD8JVhwiTIrMa8rHNSCQJ5qrdM">178 additional articles.</a></p>