Digital marketplace eBay is on pace to reach $8 billion in mobile gross merchandise volume in 2012, up from $5 billion in 2011, according to CEO John Donahoe.

Speaking at the CEA Leaders in Technology dinner at the Consumer Electronics Show in Las Vegas, Donahoe said downloads of eBay's mobile apps now exceed 65 million, adding that more than 890,000 new eBay shoppers made their first eBay purchase via mobile device last year--a 113 percent increase over 2010. Last year, eBay reported users now make three eBay purchases via mobile device every second--in addition, eBay sellers now list more than 700,000 new items per week via mobile device.

Donohoe added that eBay's PayPal division is expected to top $7 billion in mobile payment volume this year, up from $4 billion in 2011. PayPal boasts more than 104 million active users in 190 countries, with more than 8 million merchant partners. PayPal is currently trialing new mobile wallet services at select Home Depot stores, enabling consumers to pay for items at checkout via mobile device or a special PayPal card.

PayPal's expansion into brick-and-mortar digital payment services coincides with its search for new leadership: Last week, PayPal president Scott Thompson was named CEO of Yahoo.