Frankly, I'm surprised this is a selling point, because I think it attaches too much importance to our "ideas". If it's a good idea that you'll pursue in earnest, you'll come across it again. And if you don't, so what?

I say this as someone who does quite a bit of reflection throughout the day. I jot down things I find interesting, which can be, paradoxically, a way to move past the musing and onto other things instead of having it nag and pull my attention from other things. So, in all likelihood, this product would likely lead to a bunch of crap being stored in memory that you'll never return to.