Gmail is now increasing the maximum storage for its users. And I found that it now supports HTML email in Firefox, through I never use HTML email. I haven't tested with IE, but I guess it works as well.
The official "What's new" notice:
G is for growth
Storage is an important part of email, but that doesn't mean you should have to worry about it. To celebrate our one-year birthday, we're giving everyone one more gigabyte. But why stop the party there? Our plan is to continue growing your storage beyond 2GBs by giving you more space as we are able. We know that email will only become more important in people's lives, and we want Gmail to keep up with our users and their needs. From Gmail, you can expect more.
We're not in the plains anymore
Fonts, bullets and highlighting, oh my! Gmail now offers rich text formatting. And over 60 colors of the rainbow. Discover a land of more than just black and white.