Helio and its partners providing POP/IMAP email access (which include Yahoo, Google, Microsoft, and AOL) have added push email capability to the Fin, Ocean, and Mysto devices which feature the Ultimate Inbox application.
The functionality can be enabled by checking email from any supported email account, which the program will then prompt for the user to enable the functionality. Users are reporting that the functionality works as expected on both POP and IMAP email retrieval configurations. The feature works with any email service and is included at no additional cost to users.