Lock & Hide 188.8.131.52
This is a secure password protected vault for your photos that uses an album interface very similar to your Picture Hub.
If you're looking for completely hiding or cloaking your data behind a decoy app then try out 'Unit Converter' from the same publisher.
This is the best free app in its class on the marketplace in terms of simplicity, and balance of speed and security.
Unlike other similar apps with bells...