The server side technology will use the same push technology as Good uses for Exchange. When the behind-the-firewall Good Mobile Messenger server receives an e-mail, it sends it to Good Security Operations Center, which passes it on to a wireless network and then down to the mobile device.

Also like Good's Exchange server application, no attempt was made to make the user interface look like Lotus Notes. Rather, according to Sue Forbes, vice president and general manager of Good's IBM Business Unit, Good believes the better choice was to optimize the software for a small, mobile screen.

Included in the feature set is Good Mobile Defense which is a compliance management tool that can scan for the presence of IT-mandated applications and block access if applications, like personal firewalls, are not deployed on the mobile device.

Stephen Drake, program director, at IDC said that with the availability of Notes on many more devices, there will be one less reason for a company to switch to Exchange.

"Good worked very closely with IBM to make sure they got it right," Drake said.