GemRB - "Open-source implementation of BioWare's Infinity Engine"

This is an interesting one. GameBanshee sends word of an effort to create "a portable open-source implementation of Bioware's Infinity Engine", called GemRB. From GameBanshee:

And that's why I'm excited to report that someone has created an open-source and cross-platform implementation of the Infinity Engine called GemRB. At its current stage of development, the engine can be used to play through the entire Baldur's Gate saga, all of Icewind Dale, and some of Icewind Dale II and Planescape: Torment on everything from Linux to the iPad to smartphones, as seen on these YouTube videos. But let's not let the real promise be obfuscated by yet another play-through of those classics - GemRB can be used to build an entirely new Infinity Engine-based game.