ya i'm sure if it gets to a point where everything is DVI for HD, the mitsubishi will release some sort of upgrade. i sent them a bitchy email and here's what I got in return.
DVI inputs on some other manufacturers’ HDTV monitors (TVs without integrated digital tuners) were announced this year, although those monitors have not yet reached the market. Manufacturers that have announced integrated digital televisions (TVs with built in digital tuners, MPEG-2 decoders and digital video display processors) also include IEEE 1394 connectors on these sets. Quite differently, the Mitsubishi Promise module adds more than just a digital input (IEEE1394) and an integrated digital tuner and display processor to our HD-Upgradeable TVs. The Mitsubishi Promise Module also provides HAVi system control software and a 1394 interface with NetCommand for digital products.
Two source products with DVI output have been announced for delivery later in this year, and both are satellite receivers. One of these satellite receivers also has IEEE 1394 connections, and both also have component video outputs. No cable set-top-boxes have been announced with DVI, but many are already being fielded with component video outputs.
There is no indication that DVI will become a popular industry standard as a digital connection for televisions. Because IEEE 1394 connections support home recording and networking, Mitsubishi believes that IEEE 1394 is in the best interests of consumers. DVI is designed to be a “dumb monitor” connection, and is exactly that, with digital program data flowing in one direction-toward the display. Both IEEE 1394 and component video still appear to be the industry standards.