I don't think customers would like you using a phone to input their card details but if they watched you do it on a computer screen or tablet it would look more professional
Ive been thinking the same thing.
Ive just signed up all you do is go onto payatrader site, log into your account then click on virtual terminal, input customers card details. Or if you dont think customers would be happy to put details into phone/ipad then you could phone them when you "get back to the office where the terminal is" and take payment the same way or using your laptop.
Its the same thing only customers are probably more acustomed to paying for some thing over the phone as opposed to us imputing there details into our phones etc infront of them.
Aternatively the customer an log onto payatrader website input your number and pay you, also from what I can gather they can phone payatrader, thats where the £3.00 charge is.
I had a chat with the payatrader guy at the carpet cleaners carnival and they have a conventional type terminal in the pipeline also.