Shopify is having an App Developer meetup September 25th.
Come join us in IRC in the #shopify channel on irc.freenode.net at 2:00PM EST and talk with some of the API AppStore developers about how you can turn some ideas you’ve got floating around into a moneymaker sold on the AppStore.
For more about building Apps, see http://www.shopify.com/developers/
Unsure about IRC? Jump over to the web-client, choose a nick for yourself, and join the channel.(Update: the title was mistakenly set to September 19th. Please disregard the old date.)