grocer (rubygems):                           Grocer interfaces with the Apple Push                           Notification Service to send push                           notifications to iOS devices and collect                           notification feedback via the Feedback                           Service.                            There are other gems out there to do this,                           but Grocer plans to be the cleanest, most                           extensible, and friendliest. 
Keywords: apple|grocer|ios|notification-service|push-notifications|ruby