Mobile e-mail may push beyond executive corridor.

"Visto is one push e-mail provider that said it can address those potential users, mainly because its offering can be used with a wide variety of devices. 'A range of device choices will help get this to the mass market,' said Sanjay Kamble, vice president of marketing at Visto. 'We're taking this out of a device-centric mode to a service-centric.' ... smart phone operating system maker Microsoft Corp. has included a push e-mail client in Windows Mobile 5.0 and the BlackBerry has push e-mail as its core offering... Historically, mobile e-mail products were Web-based or used complicated short messaging mechanisms to deliver e-mail messages to devices. The more recent push e-mail products deliver e-mail to mobile devices automatically when new messages arrive at the e-mail server... Nokia recently introduced a push e-mail platform, and Sony Ericsson recently released an upgrade to its push e-mail platform."