A lot of projects tried to do the same as Sonder, but just a little % of them managed to reach success. I hope, you will make your best to give us really qualified and secure payment system!
Sonder would become the fully open payment network using by electronic money transfer systems online stores and paying bills services. The common value of these markets is estimated as several billions of dollars. The sellers will be able to choose any cryptocurrency to receive payments. In the future possibility to operate with fiatmoney will be added.