Yes - they all basically just seem to be adding a bit of automation to the "turning the temperature of the whole house up and down a bit" control on a standard thermostat. What I really want (and what I suspect could really make savings) would be individual control of each room and each radiator. The use profile of bathrooms, bedrooms, living rooms, spare rooms, hallways, junk rooms and kitchens is very different (my house isn't that big, I'm just trying to be complete!) and a single thermostat, no matter how smart, just isn't going to be able to do a better job than individual room control.
The only one that seems to offer a bit of a nod in that direction is nCube (as they at least have radiator controls) but I still don't think they are quite there (certainly their website is a bit sparse on details).
Are there any systems where you can get: wireless, battery operated radiator valves without thermostats; wireless battery operated thermometer (for each room); wireless on/off control for the boiler; one smart controller (with webapp and/or mobile app) and; maybe a handful of basic room controls for simple overrides ?