I'm ptting together a simple version to build into Access Control and FreeDrive, but will also do a standalone client.
At first the tracking will be on my site (for which you will need to set a username and pasword) but I will release the source code so you can have the tracking on your own site, so that if I disappear you can still track
)
at the moment there is just a simple demo screen
http://en4cer.co.uk/tracking.php