optuma MightyApp is $30-$50 month? And you get Chromium in the cloud.
Running WebKit in the cloud wuold require Mac hardware to run it on which is probably 3x the cost.
This would need to be $90-$150/mo and I do not see it economically feasible.
Btw our thinking about Orion Pro is not to include any extra features. It is purely optional to support the development.