Apple Peel: Use ipod touch to make calls (GSM).

Please do not jump to think that you can make GSM calls by installing an application. That is not possible because the communication chip itself is not present on ipod touch. This is hardware + software solution. This solution is not like many other solutions which lets you make VoIP calls using ipod touch. This is a hardware accessory which you have to attach to your ipod touch, install an application, and then use for making GSM calls. There is a catch here that the iphone should be jailbroken for installing the application which is used for texting and making voice calls. Currently it supports only 2G.

As you will be adding new hardware, be ready to have a bulky iphone ;). Do not worry much, it will not look like an outgrowth or like an extra limb. The whole hardware is nicely packaged into a single unit with an extra battery, communication chip and a sim card holder. The product is still at a prototype stage. But the cost looks very promising at $57. Best part, no carrier lock!

source: link

Unlock/Jailbreak 2G & 3G iphones with OS 3.0 on windows (link)

First of all thanks to iphone dev team to come up with unlock almost in parallel to the official release of iphone OS 3.0 launch. The tool name is "redsnow". And, thanks to people from iclarified for coming up with such a nice tutorial.

For 2G phones, you can jailbreak and unlock the iphone having OS 3.0 firmware. Here is the link to tutorial for windows users.

For 3G phones, for now, you can only jailbreak the iphone having OS 3.0 firmware. Here is the link to tutorial for windows users. The iphone dev team will be releasing shortly the tool to unlock the OS 3.0 which they are calling it "ultrasnow". Follow thier blog for updates on this.

Update(june-24th): The iphone dev team has released their "ultrasnow" to unlock 3G phone running OS 3.0. And, here is the tutorial from iclarified. Plese note that none of the above unlock solutions work for iphone 3GS, which is the latest phone.