I got my responds even from PPC-Gaming-site admins (such as those from PDAGround.com), so not only "business users" (in fact only one) and they all criticised the game (and since the game was also a news on PocketGamer.com, it is not about my contacts at all that there is no feedback

I personally like it very much but I also see that the PPC-gaming-scene seems to have a "sudden death". We'll see if it's true which would be really sad.
I wrote in forums and asked users who suddenly were a bit astonished about this post here, that they should give feedback!
Hope this might help a little bit.
By the way "sterile" was the word an other beta-tester used.
Ps.: Since the NDS-Scene is really interesting, our team started http://www.ndsgaming.de/ for German users. If there are somewhen beta-testers needed for a DS-port, we would be honoured

Greetings