Check out the free version to get an impression of the wallpaper.

This version - besides supporting the dev - has more options and stuff to choose from. You can monitor and set alert events based on the battery level, new SMS/MMS, new mails, missed calls, phone temperature, signal strength, weather, alarm clock and even voice commands.

Permissions:"Read Contacts/SMS" permissions are used to switch the alert on new Phone Calls/SMS. "Read Logs" is used to trigger on events in third-party apps. Record Audio is used for Voice Commands.No Networking permissions are requested.