So what models support the auto commercial skip and do you have a guess as to if it will be removed.

The Replay 45xx and 50xx support skipping automaticially. the 55xx marks the tracks, and offers the one button skip.

And this feature won't be taken out. The lawsuit against SonicBlue for this was settled by not having new units automaticially skip commercials. Internet show sharing also won't be taken out of existing units, but does not work on the 55xx. however, LAN sharing still works great on the 55xx, and can still easially be exported to PC.