What we know is the estimates in the CYBK PR's. The Max Celular deal was estimated to generate $600-800 / kiosk / month. I assumed that the web-portals would produce half that in revenue, since better performing locations will receive tablets or kiosks (higher revenues for the hardware).

It's hard to guess better at this point without seeing real-time performance (2-4 data points from Quarterly filings + PR's).