Right now, Groove runs only on Windows. Hopefully they'll move it to Mac, Unix and Linux very soon. Until then, a lot of people won't be getting into the Groove. The preview edition of Groove is 10 megabytes, which Ozzie said will be streamlined over time. The company is also looking at developing smaller versions for handheld devices.
Users can also chat and work on tasks together.
Any changes are automatically synchronized. And everything inside a shared space is replicated on each group member's computing device, and is available for online or offline use. You install the software on one device, and then you can access your account on any other supported device. But Groove is not intended to be used only as a virtual workspace. The Groove platform is based on XML technologies so it is very expandable and customizable.