Interesting... as a long time X10 junkie, the mobile control is appealing except for the fact that it's a paid subscription service. (this device does not use the X10 protocols)
If you are going to do something like this, remember that some devices are going to loose settings and data when the power from mains is removed... i.e. recorder clocks, projector settings, bookmarks, etc.
The "leech" label can be misleading... i.e. it's valid on some components, especially those devices which keep devices "hot" for instant on, somewhat valid for older transformer based "wall warts" but would be surprised if many modern components drew enough power to warrant concern after their "off" buttons were pressed.
Spent some time earlier this year with a "Kill a Watt" expecting high consumption on several convenience devices and was surprised to find that their electric costs were fully justified by the jobs they performed... going now to plug it into the av center ;-)
Just saw this... interesting timing
Now Taking Pre-Orders for INSTEON NetLinc – Central Controller