<p>About two-thirds of iFans eligible for a free upgrade to what Apple calls "the world's most advanced mobile operating system" have apparently chosen to skip it entirely -- at least for now.</p><p>That's a rare stat for the world's most valuable technology company, whose extraordinarily passionate users are traditionally eager to adopt anything and everything Apple.</p><p>More than 100 million users have upgraded to the new iOS 6, the software powering the company's iGizmos, Apple said last week. But according to analysts at data research firm Strategy Analytics, 173 million iPhone users, 85 million iPad users, and 25 million iPod touch users are eligible for the upgrade -- -- 283 million in all.</p><p>Which means 183 million have said "no thanks."</p><p><a href="http://www.foxnews.com/tech/2012/10/01/most-apple-users-avoid-ios-6-upgrade/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.booksnreview.com/articles/1244/20121001/ios-6-features-iphone-5-problems-continue-new-icloud-glitch-battery-drainage-static-lines-no-wifi-connectivity.htm">iOS 6 Features: iPhone 5 Problems Continue With New iCloud Glitch, Battery ...</a> (Books &amp; Review)</p><p><a href="http://www.insidermonkey.com/blog/apple-inc-aapl-ios-6-upgrade-gets-a-lot-of-no-21202/">Apple Inc. (AAPL): iOS 6 Upgrade Gets A Lot of &#039;No&#039;</a> (Insider Monkey (blog))</p><p><a href="http://www.bgr.com/2012/10/01/ios-6-battery-drain-iphone-4-4s/">iOS 6 causing big battery drain for iPhone 4 and 4S users</a> (BGR)</p><p>Explore: <a href="http://news.google.com/news/more?pz=1&ned=us&ncl=dyDxjgWWIOUz3-MdCzWe5XoVadimM">57 additional articles.</a></p>