Here is my review of the DeWalt Tracksaw, FINALLY! As much as I tried to focus solely on the Tracksaw, its nearly impossible not to draw comparisons to the Festool TS line of plunge saws. Let me sum it all up by saying you need to be really picky to find distinctions that will make a real difference to the average woodworker. If you are trying to make a decision between these two saws, you will probably need to look at bigger picture things like price, system approach, warranty, and interoperability with other tools. But if you are looking for a saw that makes extremely safe and clean cuts with good dust collection, either saw will fit the bill.

Here are a few other reviews and comparisons that you might want to check out:
Mike Heidrick’s Comparison on Sawmill Creek
Tom Hintz’s Review at New Woodworker
Professional Power Tool Guide Review
Festool’s Tracksaw Site