Shopify was featured as Cart of the Week in Practical E-Commerce magazine.
Michael Sunarlim reviewed Shopify and gave it 4 1/2 out of 5 stars highlighting features such as fast development pace, customization, and great admin interface as the highlights.
David Heinemeier Hansson (creator of Ruby on Rails) was interviewed by Practical E-Commerce for a podcast and had some very nice things to say about Shopify.