Simulate ActiveSync Client of iPhone 4 in Nexus One

[vogash]

Hi,

The problem is following:
The policy in our company is to allow to use ActiveSync client only on devies like

1. iPhone
2. BlackBerry

When i open request to get access to my mails using my phone, i configured on my Nexus One everything and i get access to my mails. The system administrator very fast found out that i access my mails using Android device and closed to me activesync on exchange server.
Is there a way to simulate device and OS of iPhone or blackberry that sysadmin will not know that anyway i use Android device to read my mails...?