It doesn't save. The changelog specifically states that you should save and go back to the main menu of the game before you soft-reset. You don't have to do that, but if you're paranoid about losing/corrupting your saves, it would be a good idea.
Thanks, for the info maybe they'll fix this when the 1.06 Final is released.
Resetting is not supposed to save the game. Saving the game is supposed to save tha game. This is not a bug, even if they could somehow make games save when soft resetting they shouldn't do it.
/agree. To be honest, I can't even see myself using the soft-reset. As much energy as it takes for me to arrange my fingers on the combination and press them is either the same or not very much more/less than the energy it takes to switch the power on/off.
It's a nice feature (I guess) but not a necessity.
EDIT: Oh yeah, the ability to save on soft-reset won't happen. In order to do that, it'd have to be a realtime save (as well as realtime load on the next boot).