As soon as there is more than 1 item in the activity, the footer incorrectly moves to the left. I think that might be because of the logic that's flawed here. I believe it should just be:

```
if ((index + 1) % 3 === 0) {
```

![screen shot 2014-05-26 at 15 59 30](https://cloud.githubusercontent.com/assets/109850/3088092/48ad2ad4-e568-11e3-9718-74f2cac5da1f.png)