The real story is Google Drive for Android, which got quite a few new features. None of the features are what we'd call a "killer feature", but they do add a number of nice options throughout the app. The changelog list shows:
1. Create folder, upload to folder and move to folder
2. Filter folder contents by file type
3. Option to auto-sync pinned content while on 3G
4. Richer Google Presentations viewing experience
5. Basic table support in Documents Editor
6. Create, reply and resolve comments in Documents Editor
7. View and change fonts in Documents Editor
8. Pinch to zoom in Documents Editor
9. Print files using Google Cloud Print
10. Option to resume interrupted uploads
11. Updates to gesture detection
2. Filter folder contents by file type
3. Option to auto-sync pinned content while on 3G
4. Richer Google Presentations viewing experience
5. Basic table support in Documents Editor
6. Create, reply and resolve comments in Documents Editor
7. View and change fonts in Documents Editor
8. Pinch to zoom in Documents Editor
9. Print files using Google Cloud Print
10. Option to resume interrupted uploads
11. Updates to gesture detection
Overall, it should allow users to make richer documents on mobile devices, and the option to print via Google Cloud Print is especially nice given that Cloud Print can be used to print to any Kinko's, so you can really get work done on the go.
All of the apps are available for free in the Google Play Store, so head there for Google Drive, Google Wallet, and Google Play Music.
