Google updates Drive and Chrome for iOS and Android, lets you edit spreadsheets now
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Other than that, the new Drive for Android rings in "editing contents of tables in Google Docs editor, formatting is maintained when copy/pasting within Google Docs, single tap to enter edit mode in Google Docs editor, add a shortcut to Drive files/folders to your homescreen for quick access and Send Link now supports copying link to clipboard," whereas for iOS we get "upload to Drive from other apps using “Open in…”, manage upload progress and see recent uploads in new Uploads section, rich text copy-paste within a document, improved speed and stability, improved contact search for sharing" and the all-important bug fixes.
Things that are NOT allowed: