If you haven't done it recently, then you might want to do so now: long press an empty space on your home screen (or tap "+" if you're using HTC Sense) then tap Widget -> Get more HTC widgets -> Menu -> Update.
There are now 15 widgets available:
- Coin Flip
- Daily Challenge
- Fortune Cookie
- Quick Record
- Sand Timer
- Tip Calculator
- Today in History
- Word of the Day
Some of them have been around for months and a few were included in the Froyo update, but the rest are new (depending on when you last checked, of course). Once you download/install them from the "Get more HTC widgets," they'll be integrated into the main list.
A few of the widgets are completely frivolous, but there are some good ones in the mix too.