I have had a 7520 for over 3 years and still think it is the best phone out there. First off, I do not care to watch movies or take pictures. I am a lawyer that runs a multi-million dollar firm... all I care about is business. I use the PTT for over 2,000 minutes a month... I could not live without it. Sprint/Nextel is the only company with free incoming minutes which I use over 4,000 of. I have 4.1 on the phone the same software as the 8700 and 7100's. All my applications work. I have 4.3 mail that has everything (this is why blackberry is king! I have telnav, opera 4 beta, google maps, remote desktop connection ... all the same an 8300 would have. But the unmatched feature is the belt clip! The plastic belt clip of the 7520 is by far the best invention ever. One that is not replicated in any of the newer models (well at least I have not seen them ... my 7100i has a leather one that does not work as well). My only complaint is that the screen does not have the resolution the other models have and the CDMA does have faster internet. I own several other newer models and cannot leave the direct connect ... it is just too good.
For me the plastic holster sucked. I threw it out the car window as soon as I could! With my 7520 it was so hard to get the holster to release. You ended up pincking it so hard to get it out it could slip and go flying accross the room! In only a few weeks it would also damage the finish of your device.
Give me the OEM leather holster with swivel belt clip!