well, I think that nowadays the optical sensors are quite sensitive, and it's not that hard to achieve any apparent placement of the sensor through some softwar

well, I think that nowadays the optical sensors are quite sensitive, and it's not that hard to achieve any apparent placement of the sensor through some software modification of the output. So even if you place your mouse at the far back, you can make it behave as though it's in front. Or at least I think so...