I am not shocked Motorola has yet another privacy issue around call logs or communication history. Motorola Droid frequently call log had a privacy issue we blogged about in December.
BGR is reporting the Motorola Droid X shows text messages and call history after they have been deleted via the contacts history. There is not magic here scroll to the contact history in the contacts app. The iPhone had a similar issue around deleted stuff remaining searchable, hopefully Motorola will actually get around to fixing this in a timely manner. It appears the is related to the Motorola BLUR interface and is present on other devices.