UsbCryptFormat is a graphical user interface (GUI) for the encryption of USB flash drives or external hard drives. It allows the user to reformat a USB flash drive, an SD card, or an external hard drive with an encrypted filesystem very easily and without the danger of destroying data on an internal hard drive because of incautious handling of device names. So it is usable even for a layperson.
CryptBackup is an encrypted backup application for Linux desktop users. It allows even a layperson to backup their home directory (including the desktop) on an encrypted external device with just a few clicks. Even the setup is only to choose the external device (such as an external hard drive) and to set a password.
Psensor is a graphical hardware temperature monitor for Linux. It can monitor temperatures of the different hardware sensors (motherboard and CPU using lm-sensors), hard disk drives (hddtemp/libatasmart), and ATI/Nvidia GPUs. The fan can also be monitored (lm-sensors). Psensor is designed to be simple and easy to use.
Cura is a mobile phone application bundle of remote server administration tools. It provides a personalized terminal emulator, a syslog module that allows for reading logs directly from a server, a SysMonitor module that visually graphs CPU and RAM usage percentages, access to Nmap, and Server Stats will offer general server information like its Vitals, Hardware information, Memory information, processes, and so on. A security feature allows you to have Cura's database wiped when you send the compromised phone a secret pattern of your choosing. (e.g. send an SMS message containing "phone has been stolen!" to your Android phone to wipe Cura's database and receive the location of the compromised phone as an SMS to your emergency phone number or as an e-mail to your emergency email address).