The Leap Motion Controller works with computers running Mac OS X 10.7 or 10.8, or Windows 7 or 8. It requires a minimum Intel Core™ i3 or AMD Phenom™ II processor, 2 GB RAM and a USB 2.0 port.
Update: If you go to the SDK, they do have linux support (version 0.8.0.5300) as a Debian package. From the release notes, it supports: Ubuntu Linux 12.04 LTS and Ubuntu 13.04 Raring Ringtail
I was able to install and run it on my Ubuntu 12.04 system. It had a dependency issue because I had previously upgraded to lts-quantal - the install did not recognize the OpenGL package because it was (from memory) "libgl1-mesa-glx-lts-quantal" instead of the expected "libgl1-mesa-glx", but I did a --force-depends and it installed and ran fine.
I have Mac OS X 10.6.8, and I wasn't planning on updating in a hurry. I guess I'll be sending my Leap Motion back (I have up to 60 days in which to do so).
When I ordered it, back in September 2012, there was no indication that it wouldn't be compatible with my OS. I wonder what there is in 10.7 that they require.
You don't have to take my word for it. You can search the web for RPi USB or Raspberry PI USB problems, or even do your own tests.
Try running dd if=/usb/storage/some/file of=/dev/null and see just how slow it goes. The fact that the Ethernet interface is connected over USB is also a problem, because it hogs what precious little bandwidth the RPi has. Try running a bandwidth test from the RPi to another computer on your LAN; you probably won't come close to 100mbit/s.
No doubt the RPi is good at a lot of things, but USB performance and network bandwidth are not among those things.
