IDC reckons that internet video services will bring in $1.7 billion by 2010, up from a few $100 million now. Much of this growth will come from premium video content made available online. However, IDC cautioned that the market’s potential could be dampened by key technical and legal hurdles. IDC expects content owners to migrate toward three basic service types. It expects advertising based web video services to be dominant, and a la cart and subscription services will also emerge. Subscription-based services will also grow, as home networking systems become more common which can copy the video files around a home. But IDC says that content owners and service providers will need to overcome several important problems, including licensing issues,…