Naja das Ami T720 heißt wohl T720e glaub ich. So... in einem newsgroup hab ich das gefunden:
A friend of mine was in a VZ store in California and saw a Motorola rep in
there with the GSM version of the T720 and asked him a series of questions
that led to the following answers:
1. Motorola's Data Kit for the T720 will not have any functionality
whatsoever for uploading photos, ringtones, or anything to the phone. They
will release uploadable kits for non-Verizon T720's, but Verizon set a
protocol where only the Get It Now service will allow users to get stuff
"into" the phone.
2. The camera attachment for the T720 will only work with the GSM version
of the phone. No go for Verizon customers.
3. The GSM version of the phone is a stripped-down Verizon version with
much of the cool features absent. They get a camera, we get more goodies it
seems.
4. There will be no BACK covers released for the Verizon T720, only front
covers. However, there will be front and back cover sets released for the
GSM version as it does not have an extended life battery and potential for
confused customers like the Verizon version (fat and skinny battery doors).
These cover sets for the GSM version will fit the Verizon T720, so time to
order yours from a T Mobile or Cingular store.
5. There is a way to use a key on the phone to act as a "page down" button
for the Openwave browser, but he wasn't sure how to do it and will report
the request at his next training meeting.
6. The stubby antenna on the GSM version cannot be used on the Verizon
version as they connect differently and even if you could get one on there
the reception would be compromised by about 25% due to the construction of
the phone.
7. The flash firmware upgrade will be available to all next week or early
the week after.
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Ist nicht so wichtig aber interessant zu wissen was die da machen in USA 
