From the app directory listing:
Gears is an excellent puzzle game that delivers complete and total freedom to the player because it does not contain snap-grid. It allows you to be creative with your own solutions. Challenge your brain against 100 uniquely designed levels and many more that will come in future upgrades!
Developer's video of Gears.
Gears is one of those frustrating games that keep calling to me to try the levels once more. What I like is that everything you need to solve the level is on display. You can see the start and finish points, you know the exact size and quantityy of gears available to you... the personal challenge is to make it all work together and not be beaten by the twisted level designer.
You can pick up your copy of Gears in the Windows Marketplace, or via the AAWP App Directory.