Open standards at Google I/O opening (photos)

The crowd arrives for the developer confab Google I/O on Wednesday at Moscone West in San Francisco. Attendance was expected to be about 5,000 for the two-day conference.

VP of Engineering Vic Gundotra takes the stage saying Google I/O is about developers, innovation, and openness in the Web. "The Web belongs to all of us," Gundotra says.

SpringSource demos a tool for determining whether the application performance holdup is on the server side, rather than the client side.

Sundar Pichai shows off the newly announced drag-and-drop features in Gmail, and a notifications API that allows users to receive Gmail alerts when not logged into Gmail.

Sundar Pichai, one of the architects of Chrome OS, discusses HTML5 on stage at Google I/O.

Chrome's cut of the browser market continues to grow, with currently more than 70 million active users.

Google shows the adoption of enterprise Web applications, with sales, accounting, and e-mail topping the list.

Paul Maritz, president and CEO of VMware, talks about the Enterprise Web computing Google and VMware have been working on together.

SpringSource's developer tool Roo is shown during a demo at Google I/O.

Showing how the same app can be run on two very different computing devices, SpringSource pulls up an expense report application on an iPad.

SpringSource demonstrates how the Google Web Toolkit integration can make for richer Web application development.

Inside Moscone prior to the opening of Google I/O 2010, where HTML5, "Google TV," and Android were among the expected topics covered.

HTML5 has been used by Opera, Safari, and Mozilla for years, but is quickly being adopted by more browsers, including, by the end of the year, Internet Explorer.

Rich mobile Web applications are being created using HTML5 and adopted faster than others.

Clicker TV demonstrates its interface created with HTML5 elements Canvas and Webworkers, which enables simple browsing and filtering of video content based on genre or source.

Mike Shaver, vice president of engineering at Mozilla, demos WebM, showing the potential of HTML5 with YouTube videos.

Dreamweaver incorporates HTML5, allowing the developer to see coding changes and the impact they have immediately alongside the code.

3D Lego Star is shown running on Native Client directly in the browser.

Kevin Gibbs announces Google App Engine for Business, which lets large businesses take advantage of Google's application-hosting infrastructure.