Apple's lead in reliability has shrunk substantially over the course of the year, according to a new RESCUECOM study. While Apple had a wide gap as late as December, its edge in the ratio of support calls to market share had closed overall in 2009; its score of 365 was only a moderate edge over ASUS' 305. Most of this came from extremely high reliability in the first half of the year, but even poor netbook quality in the later half wasn't enough to completely erode an overall lead.