With the greatest of respect, I still fail to see what on earth a poll will achieve.
If you're a developer, you develop something - particularly open source - because you will use it, and you share it because others might use it and possibly improve it which you might end up using too
Personally, I couldn't give a stuff if just me uses an application I develop or whether it's picked up by the massed throngs. I develop stuff that I will use, and if someone else enjoys it then it's a bonus, but it doesn't mean that I won't develop something if only I will use it.
Just develop it, ask for help in coding or alpha testing, publicise when it's available for public beta, and keep enthusiastic about the project
I hope you take this in the spirit it's meant: don't just ask about it, get started! The interest is definitely there, so go for it. And if you need a hand, you know that there's a lot of people keen to see this who may want to help...
Good luck!
Nick.