I also use MP with my 13.3" laptop while getting back home from work on the bus. And I sometimes need to be able to see the remaining battery percentage (and duration left if possible). If these properties would be added to InfoService, skin makers (at least Tgx - BlackGlass/Nova) could show these properties - if they are available (which is for laptop users running on battery) - on Home Screen, video OSD etc...
in advance...