MacDevCenter: Let's Build Another Dashboard Widget

In Let's Build Another Dashboard Widget, Andrew Anderson delves a little deeper than he did last time into the intricacies of Widget development: "Even though no real development environment exists now, there are some tricks and techniques that can be used to make Dashboard widget development easier. Andrew Anderson explores some tricks and techniques and presents a widget that uses JavaScript's XMLHttpRequest method to retrieve spelling suggestions from Google."

Dave and I were just talking last night about trying to hack together a TUAW-themed widget. I've had a few failed attempts at doing so. It's not quite as easy as all those little animated Konfabulator widgets I made by hacking other people's widgets Frankenstein-style together with some tweaking of my own. What type of TUAW widget would you folks find useful if we ever get around to it? 
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