That's actually pretty high in terms of BTC markup. There are BTC payment solutions out there that take less. Is the proposed value-add here a kind of content discovery service a la App Store?
> pay in 48-72 hours
Surely this can be optimized? 6 confirms is the standard of trust even for enormous transactions, and automatic payouts after such a threshold are simple to implement (yes, I've done it).
The time lag seems kind of artificial here and brings to mind the BS of traditional banking/payment processing. Is there some reasoning behind it?
> We're looking for feedback on who to approach for supplier relationships, startup mentoring, and funding.
If you'e looking for funding, you're going to hear this a lot: "seems more like a feature than a product". It's too early to be thinking about investments.
Is the idea to become a general for-download BTC marketplace? If so, you're probably doing the right thing in terms of going after the small / independent fish first. Find some sort of niche and eat it. Start worrying about investors when there's so much demand that you can't handle it on your own. You seem to be managing well enough so far, though.
Congrats on the launch!