The program runs in the background and subscribes to IMAP IDLE notifications. When the notifications arrive it can do a send/receive on the PocketOutlook account you specify, effectively enabling push email for your Gmail account (or other imap server that supports the IDLE command).

Release notes:

Update: version 0.6.0 is released
Changes: program allows you to save your settings, and will not prompt you next time you start it. To get the prompt again, currently you need to delete the settings file. Note that storing your settings stores your encrypted password on your device, and since this is an open source program, anyone can lookup how I do the encryption, so only use this option if you are comfortable, and change your email password if you lose your device!