Moreover, Blendr and Grindr really are very, very, similar.
What Blendr needs to figure out is this: How does it attract women, and, if it cannot, can the app survive without them?
well, either starting a poker game or starting some other kind of "game," I suppose.
One of the coolest features of Blendr is Venues, what Simkhai calls a "heat map": It lists all nearby locations, along with how many Blendr users have checked into those places.
Over the first days following Blendr's launch -- after mentions in the New York Times, Forbes and the Wall Street Journal -- the app does appear to have captured a particular demographic: Straight single men in their mid-to-late 20s.
Granted, my tests contain a pathetically small sample size and have only taken place in Manhattan's Union Square and East Village neighborhoods; yet still, based on those tests, I would put the ratio of men to women at around 85 percent to 15 percent.