Released a major update today.
Version 0.3.0 can be found in extras testing
See the website for more information (faq, manual, screenshots)

Changelog

• Changed background daemon to record battery status only on change instead of regular interval
• Changed background daemon to record network connection status, charging status and average cpu load as well
• Changed graph to display the new data sources (network connection, charging, cpuload)
• Changed grid layout
• Added kinetic scrolling
• Added option to choose zoomfactor
• Added option to disable/enable showing cpu load, network connection and charging status
• Added preferences screen
• Added option to limit maximum age of database records
• Added option to select scrollback history size
• Added option to configure colors of the different graph elements
• Added option to configure cpu load scale
• Optimized graph drawing code for kinetic scrolling performance
• Rearranged main screen layout
• Lots of small changes