Need suggestion about Mobile Search Implementation

Dear All,

In our company, we have installed a EV 8.0 SP4 for Exchange Server 2007. We are a global company with more than a lakh users. 25% of the users are having Blackberry.

We have instructed to plan for implementing Mobile Search for EV 8.0 SP4.

I have gone through Mobile Search section in "Setting up Exchange Server Archiving" which have adequate information.

Please share your experience (advantages and disadvantages) in EV Mobile Search.

How"calender Items" behaves if we enable Mobile Search.

Thanks.