Those Spark Fun folks just can't stop rolling out cool DIY components, apparently. If you recall, a recent PopSci Weekly Project that we ran on Instructables featured one of their GPS loggers. In this project, we embedded the logger inside a baseball cap for discrete, field-based data logging. Now might be a good time to revisit that project. A new product from Spark Fun Electronics makes GPS data logging much tidier and more powerful. Oh, and this new product is cheaper, too.