Microsoft has released the first platform preview for Internet Explorer 10, less than a month after the launch its much-hyped Internet Explorer 9 browser.

The technology giant unveiled IE10 earlier today at its Mix11 developer conference in Las Vegas. The preview, which is now available for download, isn’t a reinvention of the browser (Microsoft’s goal with IE9), but rather a continuation of the work it did in hardware acceleration, HTML5 and CSS3.

A Tale of Two Infographics: Before and After Firefox 4

Firefox 4 was released Tuesday, and early reports indicated the latest version of Mozilla’s open-source browser was downloaded more than 5 million times in the first 24 hours.

Those reports were wrong. It turns out, Firefox 4 was downloaded 7.1 million times in its first day. In fact, in the first 48 hours of release, Mozilla racked up more than 15.85 million downloads.