I don't see why not...
If you can create a sub-forum in the store forum, you can create a sub-forum on the general forum as well... I don't see the problem.
As I said, this forum is getting too fragmented. Data is not getting read because people are posting/reading in the wrong forum. As I posted earlier, where would I post a thread comparing the three store-based 7" tablets with a "generic' 7" tablet?