abiCloud is a cloud computing platform manager that allows you to easily deploy a private cloud infrastructure. One of the key features is the Web rich interface for managing the infrastructure. You can deploy a new service just dragging and dropping a virtual machine. It allows you to deploy instances over VirtualBox, VMware, KVM, and Xen. It features user management through ACL, infrastructure and network management, an appliance repository, and the ability to easily design virtual datacenters.
vidma is a utility for manipulating virtual disk images. It can show basic information about the image or resize it. Resizing is done by in-place modification of a file holding the image or by creating modified copy of such file. The only currently supported format is VDI (Virtual Disk Image), mostly used by VirtualBox.