http://www.apple.com/mms/uaprof.rdf
I still haven't gotten it to work, but I'm thinking that I'm just getting owned by AT&T. Can't wait for iPhone to come to verizon!
Ooooooooh interesting, check out the bottom where it says max res and max msg size. Maybe trying that.
<?xml version="1.0"?>
<!--
Copyright © 2009 Apple Inc. All rights reserved.
This document and its contents are provided on an "AS IS" basis, with
all faults, errors, omissions, and without any warranty of any kind,
and you use it at your sole risk. APPLE EXPRESSLY DISCLAIMS ALL
WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THIS DOCUMENT, ITS
ACCURACY, COMPLETENESS, RELIABILITY OR AVAILABILITY, INCLUDING WITHOUT
LIMITATION, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION,
LOSS OF USE, DATA OR SERVICES, LOST PROFITS, OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENT OR ITS CONTENTS,
HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING
NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Apple reserves the right
to change the contents of this document or to withdraw it at any time
without prior notice.
-->
<RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns

rf="http://www.wapforum.org/profiles/MMS/ccppschema-20010111#">
<rdf

escription rdf:ID="Profile">
<prf:component>
<rdf

escription rdf:ID="MMSCharacteristics">
<rdf:type rdf:resource="http://www.wapforum.org/profiles/MMS/ccppschema-20010111#MmsCharacteristics"/>
<prf:MmsVersion>
<rdf:Bag>
<rdf:li>1.2</rdf:li>
</rdf:Bag>
</prf:MmsVersion>
<prf:MmsCcppAccept>
<rdf:Bag>
<rdf:li>text/plain</rdf:li>
<rdf:li>text/x-vCard</rdf:li>
<rdf:li>image/jpeg</rdf:li>
<rdf:li>image/gif</rdf:li>
<rdf:li>image/bmp</rdf:li>
<rdf:li>image/png</rdf:li>
<rdf:li>image/x-bmp</rdf:li>
<rdf:li>audio/amr</rdf:li>
<rdf:li>audio/x-amr</rdf:li>
<rdf:li>audio/mpeg</rdf:li>
<rdf:li>audio/mp3</rdf:li>
<rdf:li>audio/aac</rdf:li>
<rdf:li>audio/mp4</rdf:li>
<rdf:li>audio/3gpp</rdf:li>
<rdf:li>video/mp4</rdf:li>
<rdf:li>video/3gpp</rdf:li>
<rdf:li>video/x-h263</rdf:li>
<rdf:li>application/smil</rdf:li>
<rdf:li>application/vnd.wap.multipart.mixed</rdf:li>
<rdf:li>application/vnd.wap.multipart.related</rdf:li>
</rdf:Bag>
</prf:MmsCcppAccept>
<prf:MmsCcppAcceptCharSet>
<rdf:Bag>
<rdf:li>US-ASCII</rdf:li>
<rdf:li>ISO-8859-1</rdf:li>
<rdf:li>UTF-8</rdf:li>
<rdf:li>UTF-16</rdf:li>
</rdf:Bag>
</prf:MmsCcppAcceptCharSet>
<prf:MmsMaxImageResolution>1024x1024</prf:MmsMaxImageResolution>
<prf:MmsMaxMessageSize>1048576</prf:MmsMaxMessageSize>
</rdf

escription>
</prf:component>
</rdf

escription>
</RDF>
******* at&t i hope you die!!!!!!!!!