I have always used CSS media queries on past sites for a responsive layout. Recently bumped into Drupal Mobile Tools dev.7 and liking it thus far. Trying to understand the purpose of it besides another method for a mobile site.
CSS Media Queries: Great if desktop / mobile sites are similar in functionality. Easy.
Drupal Mobile Tools: Need to load a different theme for major desktop/mobile site differences. Contextual layout. Exportable configurations.
Mainly looking for what is best practice out there. Can too many media queries put a major strain on a website with tons of hits or is Mobile Tools bit of overkill for any small/media site?