I think that's the point that BetaKit was trying to make with WePay's focus on service providers and small businesses. Any idea what the size of this market is

I think that's the point that BetaKit was trying to make with WePay's focus on service providers and small businesses. Any idea what the size of this market is? Also, I did some research on WePay, and apparently they are a YC S09 company.