good... i knew it would be fine...
from what ive read ONLY BT transfer of contacts splits them as you say.. someone within the past weeks time asked something similiar/identical to this in here... pretty sure we had to tell them the same thing...
since the phones your transferring between are both winMO, they make an app like iPhone has where you can "shake to send" the contact to the other phone...
[APP][1/21/10] Shake2Send - Bump-like app for Windows Mobile. [v1.0.1] - xda-developers maybe that does split like BT does... try it out.. let us know