I have a client who wants their customers to be able to buy their products online, including on their tablet/phone. They have an existing website but it's not optimized for phones and tablets, and they are not wanting a full re-design a this point, just a new mobile website where products can be purchased.
My concern is staying PCI compliant, and keeping it all secure. I don't know how many people would actually buy using their phone/tablet but it's what the client wants.
So how would I go about setting that all up?