Well, here is another reason I will not be getting this piece of crap Unbelievable. You already pay too much for data? Toooooooo bad, buy a second piece of data for your iCrap....I mean...iPad. Please add this reason to my other list of reasons here: HERE
It's just progress. Remember, full size (credit card size) SIMs were used back in the day of the Motorola MicroTac (1900 MHz only). I keep a full-size SIM card with the hole, for when it's time to "exercise" the MicroTac spare. You can find full-size SIM cards inside your DirecTV receiver. COtech
The full size, Mini (used today) and Micro Sim are the same thickness and the electrical contact pad spacing is the same. The micro Sim is used in power meters already, and is being adopted in EU, by Orange etc. Courtesy of Wikipedia... The blue area is the Full sized credit card sim. In fact today's sims are normally packaged in the Full sized Sim card of old, but will plastic tabs that are removed. Don't forget the iPad is slated for the EU and world market, so those vendors must be ready to use them too. The micro-SIM was mentioned in the Dec 1998 3GPP SMG9 UMTS Working Party which is the standards setting body for GSM SIM card. (again Wiki)
I'm sure someone will make an adapter to snap your modified SIM into so that you can easily put it back in your iPhone after using your iPad. Or just keep the extra when you cut your own SIM down to size. Note: Somehow my earlier "reply" to this thread and ended up in another thread... Need more sleep...
If you think about it, the 3G frequency issue is the greater issue. MicroSIMs will be here and this might actually speed that up. I would hazard to guess the next version of the iPhone might used them as well. However, using the fact the device is unlocked as selling point is somewhat disingenuous since you're limited to AT&T for 3G speeds. Sure, you can take it to Tmobile once they start using MicroSIMs, but you lose a lot. If someone's going to do that, they might also be tempted to get the WiFi only version.
I think the unlocking is meant for outside the USA. The iPad had Quad band GSM, plus 2100Mhz (along with UTMS 850/1900). 2100Mhz is 3G for most of the non-USA regions. P.S. HEY what happened to my picture of the micro sim in my previous post (post 6). It just disappeared. Here it is again:
Re: Why You Can’t Use Your Phone’s SIM in the iPad exactly, i already see these modifications happening.