We have this Text/html widget by default. That's very usefull to create some static content for the Template. But for people they haven't a know-how about html Tags (for example to write bold or change color, what ever) its hard to wrok with this simple widget.
Why shouldn't support this widget a right editor like the one in the wordpress post and page creating tool? This would be easier for not-programmer to make some short text they can edit how they want.
(i'm sorry for my horrible english)