Joomla 1.5 is currently in its 4th release and we are making plans to start installing it as our primary Joomla version. We have been waiting for it to stabilize and for our main addon components to become available. At present, the only one we need is the VirtueMart E-commerce addon used in our Info at Hand integrations.

You can see the list of improvements at the Joomla site and read about the upgrade steps for current 1.0x users. We will be offering upgrade pricing in the next month. Keep an eye out for further announcements.