Merchants who have a WordPress e-commerce store are notified of new orders via a text message to their mobile phone through Clockwork.
Visit clockworksms.com to register for an account.
Shopp is an e-commerce plugin for WordPress. Learn more about Shopp.
Yes, there are different extensions available including emailing marketing, short message service (sms) notifications, forms & reporting, help desk, and more. Please visit Optimize My Shopp.