Hi all, I just got my new iPhone 4S, and am considering having it linked with my employer's Microsoft Exchange server so I can get work email without lugging around a separate BlackBerry. Does anyone know if doing this has an adverse impact on the phone's performance? I average about 100 emails received every day. I'm grandfathered into an unlimited plan, so I'm not worried about data usage. I just want to make sure I don't bog my phone down if I get lots of email. Thanks!