Should a data grid be able to use a hover for more information pattern? This type of pattern is commonly used in interfaces that have more of a thumbmail view of items, for instance on Netflix when you hover over a movie title for two full seconds you get more info about that movie. When you are in a data grid, there is significantly less space for your mouse to rest that is not hoverable. I fear that this pattern may become annoying when you don't want to use the hover.
Alternatives I have come up with is a small "information" icon in a column on the left-most side of the grid, that allows you to hover for more info. Or, removing the hover altogether and implementing a single click for more information.
Has anyone seen good examples of a hover used in a grid? Do you have any alternate ideas to help with this problem?