In FTB, lots of items interact with chests, such as Miners. Which, if any, of these items also work with vanilla Ender Chests?
Or conversely, which items do not work with vanilla Ender Chests? Whichever answer is smaller would be best.
As has been said in the comments, the Vanilla Ender Chest can't be used by machines as each chest essentially links to a part of the players inventory. The tubes and pipes and what not won't be able to use the chest as they're not a real player (some mods fake players for certain actions, like ComputerCraft Turtles placing things or RedPower 2 deployers... deploying.
A bugreport has been added for BuildCraft (transport pipes) for this issue, but the report was closed saying this is not fixable due to the way Vanilla Ender Chests work, and the same problem would happen for all other mods.