In creating an iPhone app, is it possible to generate a popup alert on the iphone (similar to a Push notification) when the app has been closed. A simple example would be t
Sorry buddy, not possible.
There might be solutions for a popup when the app is reopened, but not when it's closed and without push.
EDIT: Actually, yes!!, but it's janktacular. You can create an .ical file with let's say, 15 minute alerts, sync it to a caldav/webdav server and have the iPhone subscribe to it in the Mail/Contacts/Calendars settings pane. Check out Omnifocus, this is their push work around. It syncs things that are due to my MobileMe iDisk, and I subscribed to the calendar - Boom, notifications.