Screen Resolution - self-adjusting as twitter bootstrap (good user experience) or a version for small screens and another for larger screens (without Media queries, saving resources). What is the best option for now and the future? why? situations: - I'm having a website on a mobile device connected to the data projector. I would not want the page reload because of a different resolution.
Save resources vs. user experience for usability engineering for webapps and websites.
Consider using a framework for your web app. display, to make supporting different displays easy.