You Can Use Smart Sim On Globe Iphones BUT…
Looks like you can use a SMART/SUN sim on Globe iPhones. William Yu was able to do it successfully on a Smart and Globe Sim even before it was released in the Philippines. The issue - you'll have to jailbreak the phone.
The other issue is that you'll have to use some special SIM system called the Devey/Gevey Sim.
Unlock 3G iPhone without cutting SIM card, intended to provide easiest, most secure solution for instant iPhone 3G unlocking, it frees iPhone to work on different carriers' network of different countries, compatible with 2G GSM2.5G EDGE3G UTMS3.5GHSPA SIM card. No need to rely on bundled operators' network. Once iPhone is unlocked, it is able to access any 2G/2.5G/3G/3.5G network on the planet.
You also can't upgrade to the latest OS of the iPhone as the system won't work.
Seriously, this is a bit of a hassle for an expensive piece of equipment. My bet is that eventually, the iPhone will become cheap enough for ordinary consumers and will eventually be available in any network by default.
Give it a year or two. There's obviously a demand for it anyway.
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