Delarn, have you been able to draw any conclusions about your target audience, based on the survey results?
I am thinking that the DS audience is thin. The product is fairly cheap, so if a program were written and spoken well of, people may go buy a DS in order to use your app...
But it seems to me that you are taking two narrow markets:
Item D: DS owners willing to run homebrew apps
Item S: Shadowrun Players willing to use electronics as a game aid
The intersection of D and S is going to be a very small ultra-niche.
The concept is great. Its very exciting. But I say that as a member of half of your niche
I have spent More than a year developing the SR4CG. From my experience I have learned that your community is vital for several reasons:
Motivation - A strong community motivates you to continue even when you have a SR dry spell and havent played for months
Testing - A strong community will provide many product testers. As big as shadowrun is, there are a lot of places to go wrong. Its handy to have many people reviewing your work and pointing out the faults or missing pieces.
Development - A small percentage of your users will be willing to go the extra mile to assist your development by generating actual content.
If your audience is very small, you are going to find a lot less help. If you write a great program, but users must spend a hundred dollars in order to use your app... then even if your app is great and people are interested, your community is going to have a hard time growing.
Perhaps a new survey would be relevant.
Do you have a DS.
If not, if an awesome SR tool was made for the DS, would you be willing to buy one?
The results might help you decide which direction you should go with your project.
[Edit]
I posted a poll about SR devices.