Yes. However, the Sendo X uses its own "PC Suite" & the 7610 its own. Easy enough to try, if you have the phones (and their respective versions of "PC Suite").
I actually don't have a Series 60 yet. I am trying to decide which Smartfone to buy.
I want something that will let me carry all my Outlook contacts (including all phone numbers, addresses, emails, and the body note for each contact), calendar (including the body note on each appointment), task list and Outlook notes.
I know that the MS phones can do all this but I'd really like to avoid another Microsoft product if possible.