A guide to SIM cards, the small chips that connect your phone to a cellular network

A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.
EDN

Micro-SIM Card Socket

Molex Incorporated has expanded its micro-SIM card socket portfolio for mobile device manufacturers. Designed for smart phones, tablet PCs, GPS watches and other space-constrained applications, ...
Gizmodo

T-Mobile Is Offering Micro SIM Cards So Their Customers Can Use the iPhone 4

In order to use the iPhone 4 on T-Mobile you have to jailbreak it, unlock it and then annoyingly cut your fatty SIM into a Micro SIM. Annoying! T-Mobile is making it a little easier by giving Micro ...
AppleInsider

AT&T's 4G-compatible micro-SIM cards prompt speculation of LTE 'iPad 3'

AT&T stores have begun receiving new micro-SIM cards compatible with the carrier's LTE 4G network, prompting speculation that they could be compatible with a new third-generation iPad from Apple ...
Geeky Gadgets

Cut My SIM Converts Any SIM Card Into A Micro SIM

If you don’t fancy using a meat cleaver to turn your SIM card into a micro SIM card for your new Apple iPad, then you may want to check out this cool tool which does it for you, the Cut My SIM. The ...
Complex

T-Mobile Now Offering Micro Sim Cards For iPhone 4 Jailbreakers

In another step toward the mainstream for jailbreaking, T-Mobile has just announced that it will offer free micro sim cards to network subscribers using unlocked iPhone 4s. The latest iPhone cannot ...