Google announced a new service called keep, this service allow Android device users to store their notes, voice memos or any data and even checklists and photos to keep track of important things to remember. The data or notes, that are stored in Google Drive and synced with devices. Keep transcribes voice memos automatically, super-fast search, also you to archive or delete the note, use homescreen widgets to capture thoughts quickly. Keep notes can allow user to choose the color for their each note too.
Google Keep service is available on Google Play for devices running Android 4.0, Ice Cream Sandwich and above.
GSMArc.com: List of Android Devices