http://www.ibm.com/developerworks/linux/library/l-knockage.html?ca=dgr-lnxw07l-knockage&S_TACT=105AGX59&S_CMP=GRsitelnxw07
It is a little hack to use the inbuilt accelerometer of Lenovo (and possibly Macbook... gotta try on my MBP) just as another input device. Looks damn cool.
Anyone with experiences to share? m.