Mobile PO entry

I have users out in the field without ready PC access. I would like a simple way for them to create POs on their mobile devices (smartphone) I know Epicor has a mobile platform but believe its in its infancy and cannot offer much for functionality like this. But what would you suggest a good means of approaching adding POs (simple entries) with a mobile device?

There is a web version of Epicor…
But…
It may have to be made at this point. Epicor has REST services that enable us to create almost anything.
That being said, I wouldn’t be surprised if we see a mobile platform from Epicor 10.x

I have worked with this for a while for all of our mobile and external access.