I love seeing new productivity tools, even if they don't turn out to be useful they are fun. I'd like to see more odd experiments with this genre.
It's not a NANY, but I'm just chiming in to say I picked up a funky timer app for my iPhone that lets you set time periods like a stoplight as Green, then Yellow, then Red. But it counts down in bars rather than numbers, so it's very holistic rather than the "overprecise digital" nature of a lot of timers.
What's proven interesting for me is you can set it for "unexpected" time chunks. (My pet favorite is 37 minutes.) So for example doing ugly stuff like dishes, it's easy to get past the "green" slot, and then right about when I am getting ancy it goes to "red", aka a mirror of my mood and a reminder to stick with it and Get Them Done. (I tend to keep "yellow" off for now.)