Google and Dell have reached an agreement to install Google software on Dell's personal computers before they are shipped to consumers. Presumably, this will mean a version of the Google Pack, which bundles various bits of Google software. Hopefully, this will mean a Google-branded Firefox as the default browser on Dell machines, and Internet Explorer defaulting to Google's search, rather than Microsoft's.
If the Google/Dell deal includes Firefox, this could be a very significant step toward breaking Microsoft dominance in the browser market, and it will certainly be good news for Google's search market share. While the new Internet Explorer (7.0) is expected to be a big improvement over version 6.x, it will still be behind Firefox in terms of standards support, speed, and features.