iphonejtag published a 10 Step procedure that appears today as the best way to SIM-unlock an iPhone. But it is not the easiest one available, as it requires disassembling the iPhone, as well as soldering micro-wires on the motherboard:

This is probably the most difficult part, as the traces on the PCB are tiny, and its thickness is in the micrometer range. There are high risks of creating short-circuits between two adjacent traces on the PCB. Nevertheless, this step is essential to be able to modify the firmware.
iPhone fans not living in USA can purchase SIM-unlocked iPhone from eBay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230164884672
While we are writing this the current bid is US$1575...
and edited following dbcanada comments
As we mentioned it previously in our
Penryn processor article,
VR-Zone revealed that Intel will release the high-end 1600MHz FSB Xeon models for Q3 2007.
This will include 3 processors named as follow:
- E5272: Quad Core clocked at 3.4GHz (6MB cache)
- E5462: Quad Core clocked at 2.8GHz (12MB cache)
- E5472: Quad Core clocked at 3.0GHz (12MB cache)
All 1600MHz FSB Quad Core Xeons are announced with a TBD of 80W, and will come along with a new chipset named Seaburg.
Merom processors dedicated to the Santa Rosa platform support 800MHz FSB and are named as T7X00, where X is an odd number. Previous Merom supporting only 667MHz FSB (Napa Refresh platform) are named as T7X00, where X is an even number; and are much more expensive despite the fact of being "older".
We have tried to install a Merom 800MHz FSB processor on a Mac Intel based on the Napa Refresh (667MHz FSB), a Mac mini. But no chance, even though pin numbers are the same, as well as the socket, it did not work. After looking into Intel database, we found out that the founder while using the same socket, pins rotated 90°, making such CPU and platform incompatible.
So, if you own a 667MHz Napa Refresh-based Mac Intel (first iMac Intel and Mac mini) you will only have choice among 667MHz FSB Merom processors, currently more expensive, to upgrade your computer. Once the Mac mini was disassembled we tried a pinmod to overclock the FSB to 800MHz, but here again it did not work. The modification was simply ignored.
Following our previous article about
Penryn processor and future Mobile platform,
Digitimes announced that Intel is planning to release not less than 11 45-nm Penryn mobile processor for both Santa Rosa and upcoming Montevina:
- The first 5 Penryn processors will arrive in Q1 2008, designed to run on Santa Rosa with a 800MHz FSB (most recent MacBook Pro and iMac), and will be clocked at 2.1, 2.4, 2.5, 2,6 and 2.8GHz. Both high-end models will feature 6MB L2 cache, while the other ones will only have 3MN L2 cache.
- When Montevina will be introduced to replacecurrent Satan Rosa (Q2-Q3 2008), Intel will release 6 dedicated Penryn processors supporting 1066MHz FSB. Clockspeed will top at 2.53, 2.8 and 3.06GHz for high end models featuring 6MB L2 cache and 35W TBD. The tree other processors targeting mainstream market will be clocked at 2.13, 2.4 and 2.53GHz and only 3MB L2 cache.
Based on Apple's history, we will most likely not have a revision standing for 3 months in 2008 between Santa Rosa and Montevina platform. So either Apple adopt early in advance 45nm Penryn for the current Santa Rosa platform, with a revision of MacBook Pro in coming month (together with Leopard launch?) with simultaneous transition to Santa Rosa for the MacBook. Or Apple will only adopt Penryn processor when Montevina will be already established around June 2008.