“Blackberry killer. That’s Microsoft’s hope for its new ActiveSync Direct Push Technology in Exchange 2003 Service Pack 2 for Windows Mobile 5.0.” And elsewhere: “Accoding to research firm Canalys, global shipments of smart mobile devices is up 75% year-on-year in Q3 2005, with handheld shipments falling 18%, while converged devices more than double in volume.“
Can’t push be obtained by just having an IMAP client that supports IMAP IDLE?