In a comment on my previous post Using the HTML5 <video> tag with a Flash fallback, Rob Colburn suggested serving everyone the same H.264 video file.
<video> tag makes it possible to embed video clips in web pages much like how the
<img> tag works for images. The browser itself provides the playback functionality without any need for plugins like Quicktime or Flash.
My favourite browser Safari has support for a snazzy custom input field type called "search". This gives the field a rounded look and the ability to remember search history (amongst other things). The major drawback is of course that the HTML will no longer validate since this feature isn't part of the official spec.
In order get around this problem I whipped up a jQuery snippet that dynamically changes the Drupal search input field to a Safari search field if the visitor uses Safari.