In reply to:
There's nothing "missing" from the product as it will ship, although I'm sure we will add lots of new things in future updates. There's one major ticklist item that the HSX109 doesn't currently have (apart from car player synchronisation) which would seem like an obvious candidate for the first update, but I'll let you work out what that is
My pick for the missing ticklist item you refer to is the ability for these units to network with each other for backup/synchronisation purposes and also to let you stream mp3 files from another HSX 109 for playback purposes [this in effect allows remote control of 1 HSX 109 by another - and/or (even more useful perhaps)by a PC and/or web browser?].
This is what the ReplayTV units can do right now - move shows between units so it would be logical for the HSX to support this also.