I updated my article about BCD-to-7-Segment decoders and added a link to the logisim files on GitHub.
Using a Raspberry for multimedia application is something quite interesting. End of March version 3.0 of OpenELEC has been released bringing XBMC to your Raspi. Unfortunately creating a bootable SD card is not straightforward if you’re Windows-centric. The distributed tar archive contains a script for creating such a SD card under Linux only. But creating the SD card under Windows is not that complicated.