Google has updated their Docs mobile app for the Android platform.
Google Android on Android now support offline caching of documents.
You can select individual files for offline access. Google would cache the files so you can access them anytime you want to.
The files are automatically synced with the online edition whenever the device gets internet connectivity.
Google has also updated the Docs app for Tablet PCs. Users now get much improved reading experience on the Docs app. Google said:
For those of you with Android tablets, we’ve also improved the Google Docs reading experience. Now, when you open a Google document on your tablet while online, you’ll get a high-resolution version of the document. Swipe left and right to flip between pages, or use the slider at the bottom to page ahead quickly.