Recently we have seen a huge influx of advertisements from Microsoft trying to show off Internet Explorer 8. These adverts, amusingly for those of us who use different browsers, are showing off functionality that has existed in other browsers for a much longer time. The idea of private browsing has existed in all the other main-stream browsers for a long time, parental controls and more.
Now IE9 is on its way and this will apparently support the forthcoming and updated standard, HTML5. I hope this time they get things right and actually support true web-standards, rather than making us developers fight against all the quirks.