Add more social and bio fields

@nguyendam – this plugin does one very specific thing, which is to replace the single “Name” field in BuddyPress with “First Name” and “Last Name” fields like WordPress has and keep the two in sync.

I think you’re perhaps looking for something like:
http://wordpress.org/plugins/buddypress-xprofile-custom-fields-type/
which extends the kinds of fields available to you.