I'm new to this manga (just bought the 2nd volume... yes I actually buy manga...) and even though I'm only two in its probably one of the best game suited anime around. I'm usually not a fan of anime based games mainly because I know (as most of you do too) that they're usually crappy and rushed just to make a quick buck/euro/paso/yen/etc. But this series just seems like if they made it into a game it would work perfectly. I see it this way:
1. It would be one of the few anime based games not based on fighting.
2. Its got an impressive enough story and system that if carried into the game would keep it interesting when playing alone yet add in online and good customization and Its already looking great.
3. with modern gaming I think its possible so I'm going to throw it out there. add the ability to travel anywhere in the city/cities and the ability to choose any path to the goal in a game of this type would be impressive. also make it realistic. where as most sports games similar rearrange settings to make them more useful leave it as an actual place would look.
I'm sorry. I'm sure this has come up, I'm just amazed there hasn't been one yet.