Boomerang gets pushy with Gmail notifications, multi-message selection

Boomerang's latest update adds tweaked functionality, moving it from one-trick unicorn territory to a possible Gmail app-replacement. Developer Baydin's improvements include Google Cloud Messaging-based push notifications, the ability to "send from" and multi-message selection for bulk mailbox organizing. If you're a fan of the email giant's new tabbed inbox, you're out of luck for now -- everything here is still lumped into one list. If you ask politely enough though, we're sure the dev will co...