I suppose some very cheap, very easily understandable gadgets (such as pink usb cable) could be purchased via mobile. But in my opinion every "serious" purchase

I suppose some very cheap, very easily understandable gadgets (such as pink usb cable) could be purchased via mobile. But in my opinion every "serious" purchases are not something you would buy via a phone. Also, my app was sold in Europe, so maybe the US market is more mature...