HDMI clearly is the future of digital A/V connections. Exactly what protocols are ultimately carried via HDMI that remains an open question, however.
May's court decision throwing out the FCC's requirement for a broadcast flag as part of any digital video input/output on consumer electronics gear (the HDMI or 1394 connector, in most cases) would theoretically be good news for both consumers and electronics manufacturers, if not for the certainty that the broadcast industry will appeal the decision. In the meantime, until the case gets to the Supreme Court, the very connectors that CE gear will use hang in the balance.
And until the Supreme Court ultimately decides the broadcast flag issue, the future of HDMI, at least in the U.S., remains a bit unsettled. That's no reason to avoid using HDMI today—it's a fantastic convenience and it usually provides the best quality of signal transfer.
Just be aware that, when it comes to digital video connections, things can change.
liff Roth is a freelance writer, consultant, and editor of Video/Imaging DesignLine (www.videsignline.com).