Would you consider opening a branch of YC in Manchester, UK? Huge amount of talent there being wasted in banks and consulting companies. Low living costs, excellent universities, large pool of engineering talent, growing startup community.
How do you plan to keep it from overflowing with product submissions? The more submissions you get the harder it becomes for a product to get seen, seems like the same problem that most app stores have. Do you have a daily limit for product submissions? Will the list be curated?
Also a top weekly and top monthly would be good IMO.