Hoffman serves on Wrapp's board, as does Skype co-founder and Atomico founder Niklas Zennstr??m.In the US, the Swedish company has tied up with retailers including H & M Hennes & Mauritz, Gap, Sephora and Fab.E-gifting ??? or people buying gift cards from a retailer's website ??? is still in its infancy, accounting for only $1 billion of the $100 billion gift card industry last year, according to