Thanks for the plug SM.
I think you may be a bit confused on the parts... Let me see if I can clear this up on your 7520...
First the leather case for the 6510 and 7510 was identified by Nextel as RAC55059. This case was discontinued back in November.
Second the replacement case for the 6510, 7510 AND 7520 is RAC5524 or ACC-05505-024.
Third there is no new case for RIM to introduce for the Nextel BB... It's already here as stated above.
When you look at the page
http://store.bizshopr.com/rimrac55059.html you will notice the part# we reflect is the RIM designator "ACC-05505-024". We try to reference, where practical, the alternate Nextel part number (which I added in a second location for more clarity). If you order from that page you will receive a box that shows RAC5524/ACC-05505-024 labeled from RIM. If you need more clarification visit the Nextel web site accessories section for the 7520/7510/6510 and you will find the RAC5524 listed as the only leather case they sell. Bottom line here is - the case you want is already here and in stock. Has been since 7520 launch. In terms of photos that is the stock RIM photo we used which shows the RAC5524 and 7520.
Your rep was carrying the RAC5524 case (probably used for more than a week) that's why your BB slipped in.
IN terms of the 7290 which is where this thread was going I think... There are several new 62xx/72xx cases coming that will fit... These cases are generic, non-model specific hydrofoam cases. There is a much rumored new Leather case (which actually looks like the RAC5524 talked about above) for the 7290 etal. Big FYI the photos on shop.blackberry site are not correct. They are showing the acc-05150-001 which got this thread started.