CTIA Fall 2007
The CU515 is only an upgrade in style from the CU 500v. It is now sleek and shiny and a giant fingerprint magnet, like most other phones on store shelves these days. In fact if anything some users might call it a slight downgrade because the external display is now monochrome instead of color. However it is highly legible and integrates much better into the look of the phone. (Although it doesn't compare to the Motorola U9, which has the best-integrated external screen we've seen recently.) The camera is also now fixed on the outside front of the phone, so you can no longer rotate it towards you to take self-portraits or share video of yourself.
The one place the CU515 has clearly been upgraded is with a new keypad. The keys are large and easy to type on. The model we were able to photograph and try was not working, so we could not tell if there are any upgrades to the menus and navigation.