I'm evaluating is it possible to create a mobile app by using the rest api / soap. i've checked the rest api, seems there are some feature are missing in rest api, for example: adding the product into shopping cart, checkout
on the other hand, seems the soap is more complete http://www.magentocommerce.com/api/soap/checkout/cartProduct/cartProduct.html
anyone has experience in magento api? is it possible to create mobile app (add product to cart then checkout) using the rest api / or soap and also using phonegap on mobile side?