I just noticed this thread at Secrets of Home Theater regarding the emergence of a few problems with HDMI. The information is still a bit sketchy. Several issues are listed. First, some cable boxes with HDMI outputs are not delivering video to displays with HDMI inputs. Additionally, there is talk of revising the HDMI plug design to be more sturdy (which may or may not relate to the planned v1.3 of HDMI, mentioned separately in the post, that is supposed to offer higher resolution 5.1 audio than is currently available with v1.1 or the forthcoming v1.2). More curious still, there are two comments about problems with HDMI coexisting with coaxial and optical digital outputs: some sources with HDMI outputs are not able to output digital audio via coaxial or optical when the HDMI output is connected to an HDMI display (no mention of whether this is also true when connected to a DVI display) and some HDMI displays are permanently messing up coaxial and optical outputs in HDMI-connected sources like DVD players as part of the two-way communication "handshake" between devices (again, no mention of DVI displays doing this and no mention of how "permanent" or "messed up" the effects are on digital audio outputs). Secrets is going to try to gather some input from engineers on possible solutions - it will be interesting to see what comes out of their digging.