In order to push the agenda on HTML5 and cloud computing, Google has decided that it will no longer support older versions of your favourite browser, what ever that may be. In a statement on The Official gmail blog at Google, said yesterday that "...Google Apps will only support modern browsers. Beginning August 1st, we’ll support the current and prior major release of Chrome, Firefox, Internet Explorer and Safari on a rolling basis."
This, in my opinion, is a good thing. Hopefully it will encourage internet users to stay up to date with their software updates and provide developers with a stable road map upon which to plan the development and support of their applications. Of course it also pushes the Google agenda but I've seen far to many users out there still running IE 6!