If you are making a mobile application based around a wrapped in-app browser(Apache Cordova/PhoneGap and Appcelerator Titanium), I'd say yes. I know most peopl

If you are making a mobile application based around a wrapped in-app browser(Apache Cordova/PhoneGap and Appcelerator Titanium), I'd say yes. I know most people wouldn't even think they could disable Javascript on their phone or even know where to look in the first place, but there is always a chance that it could be disabled. The most recent experience I had was when I disabled the Javascript on my iPhone 4s for a web accessibility course and forgetting to reenable it. Later I'm looking to find a place to eat with good reviews, and Yelp's mobile view would not load and gave me a lovely message to enable Javascript. I know it is not a wrapped in-app browser liked I mentioned before, but the app should at least give me a bare bones list at the end of the day.