There is a very significant rumor post on another site regarding that casing being the real deal. Anyone here read it? I know this means nothing in the real world currently but its a good read. Heres what was posted for those of you who havent seen it.
"I worked for Apple, but was not employed by Apple.
Yes, one is coming, it may be delayed by up to three weeks though. Apple won't launch until 32 GB models are ready but they are dependent upon industry supply. Target launch for July 10, actual launch will be the 17th to no later than the 31st. I don't work in software but I think that 3.0 will be ready before the new iPhone and they will probably release it to current users before the new iPhone goes on sale.
The leaked image of the back casing from a month or two ago is real. It is a rubberized plastic which feels "grippy" and has a smoky charcoal color. That is part of just one of three prototypes. The chrome bezel is gone. The camera hole is slightly larger with an actual lens, no optical zoom or flash. It will utilize the 3.2 MP sensor. On one prototype the Apple logo was made transparent so it could be lighted by an LED (which had yet to be added). It doesn't appear this feature has been added in the 3.0 software so it is unlikely to be released. On another prototype there were two LED's that shone through the LCD when it wasn't in use, however this won't come to the final release as the feature doesn't justify the cost and it increased the device thickness somewhat.
The CPU is 733 MHz and is custom-designed by PA semi. It runs underclocked around 530 MHz at the same performance as the current processor which runs at 400 MHz. It could probably run at its full rating but will likely be under clocked at whichever rating optimizes battery life. It is not multi-core. RAM has doubled to 256 MB.
One model will be released this summer, two distinct models are being developed. Don't know when they will expand by the product line but expect two iPhone models by the end of 2010."