I tried it. Didn't seem to change anything related to email although it states:
Software update (MX-3.5.4, TX-3.5.6)
> Office: Improved support for email mes- sages. Improved display of text-message sender on iPhone devices with iOS6.
But I haven't bothered to un-pair and then re-pair my phone. That may be a necessary step. Southy: This is your bailiwick. Let us know if you can figure it out.