Pilgrim admitted that there is a dispute going on among all the browser makers over which HTML5-ready video codec to support. Safari only supports the H.264 format, while Firefox and Opera only supports Ogg Theora. Chrome will support both. On Friday, Microsoft announced, via blog post, that it would support H.264 "alone," implying that the browser would not support Ogg Theora.
"If you're willing to encode twice, video will pretty much work everywhere," Pilgrim said.
With geolocation, users can offer information about their whereabouts to a Web sites. Thus far, Google is using it for iPhone and Android's mobile search feature. Twitter uses this feature as well.
With off-line Web applications, a site can download data to a user's browsers so that data and functionality will be available even if the user is off-line. "This works today," Pilgrim noted, pointing to how Google uses the technology for iPhone's Gmail application, which allows users to access their email while unconnected to the Internet.
In summary, Pilgrim said that Web developers should start familiarizing themselves with the new capabilities within HTML5, as it considerably changes the definition of what constitutes the markup language. "After awhile HTML5, will just be [referred to as] HTML," he said.
"HTML is getting better, and that's big news," he said.