Very nice design, pretty easy to understand, and interesting. But without knowing the Plasso name (or Spacebox, for that matter), I need to especially trust an entity working in the payments space. Finding the "about" page was tedious and looking at "goods being sold on Plasso" led to several empty pages. Trust is paramount and I think you'd do well to convey that you're trustworthy. Good luck!
I used to walk up to the computer kiosks in RadioShack mall storefronts, write a quick loop saying "Joe was here", hit Return and run away. It was glorious.