I've just used Sony's eCommerce Site to try and make a purchase using my mobile phone.
This surely can't be an unusual practice, but the experience was less than optimal from start to finish. With two key issues...
1. The site is not mobile compatible.
It actually looks like the interface was designed for a large monitor. Last I checked, the major Japanese technology manufacturer still made mobile phones.
2. The transaction didn't work
Despite progressing all the way through the process, I get an unhelpful error message at the end.
Come on Sony, you can do better than this.