Top 10: last week's most popular retail technology articles
PizzaExpress apologises for misfiring mobile app
Zapper runs into trouble, lays off staff
Aura Vision Labs snags £100k seed investment for retail customer tracking tech
Q&A: Karoline Gross, Founder & CEO, Smartzer
Poundland causes another social media stir
Q&A: Jaime Sanchez-Laulhe, CEO & Founder, Geoblink
10 more promising retail technology ventures
Walmart files smart shopping, inventory patents