Six new games, several of them in 3D, have arrived on the Zune Marketplace—and they're meant to show off the power of the Zune HD's NVIDIA-built Tegra processor. They do that well enough, but even better than the graphics is the fact that these games, unlike the first batch, have some actual replay value. In other words, they're fun.

The same couldn't be said of the first round of Zune HD apps, which featured nearly unbelievable load times, simple 2D graphics, and an unfortunate tendency to make the eyes glaze over. They also came with unexpected "pre-roll" ads for products like the Kia Soul, but hey, they were free, right?