[belthesar]

I often hear this rationale when starting with a social app, but I think that you may find that you pigeon hole your age demographic by only doing an app. Folks that are in the prime professional age bracket (gut check, late 20's to 30's) are going to spend more time on a larger screen device than they are on a smaller screen device. At the very least, if you're not planning on developing a tablet app right away, having a browser option is at least a stopgap between running a phone-size app on a tablet, or not at all while you work on that.

No idea if you're building your app in a web framework that ports to mobile easily, or what your choices are around that, but I'd highly recommend reconsidering not having a web app if it's at all reasonable for your time table.

For me? I hate typing on my phone, so I probably would pass on this until a web app is supported.