i agree with TraderTimm:
Not a single goddamned thing tells you it is 'waiting' to download the friggin blockchain. That will cost you a lot of user goodwill, right there.
"Why can't I do anything?"
"Why is the bitcoin I just sent/received just hanging at zero confirms?"
We understand the system, so this behaviour of the client isn't foreign to us, but to someone totally green - it seems like some arbitrary obstacle, if they ever spend the energy to learn about it, that is.
i also agree with Garrett Burgwardt:
But if people see bitcoin now, and don't recognize the potential and simply see the flaws, more people will just be turned off. Again, wait for .4, it shouldn't be too long, and adds some basic functionality.
furthermore, i believe your concession, here:
I won't start the campaign now but we still need to build funding.
all of that said, i have transmitted 1.01 BTC to the wallet in the OP - an odd number, so you will know it is from me. i still have no intuitive grasp of how one makes it clear - without this sort of jumping-through-hoops identification - that a sent amount originates from a specific account. [perhaps v. 0.4.xx will address that?
] i believe you will not only do what is right with it - but do what is effective.