The Verizon global phones suck... I can get what... a DI2? a Droid Pro? Droid 2? All minor upgrades over my Fascinate if they can be considered upgrades at all... If I knew the GSII was going to be a global phone on Verizon then that would be the clear and easy answer. But I doubt it will be.
I need more understanding of this whole "unlock" concept... having never used a GSM phone since like 10+ years ago. If I subscribe to an international plan that my company pays for, do I even have to unlock? I thought I could use the existing SIM card and just roam on the international GSM networks?
You can be on any network and use it internationally.
You'll probably be paying $4.99++ per minute for it.
If company is willing to pay for that, you don't need to worry about GSM concept.
GSM phones are popular because pretty much everyone else around the world uses it.
If the phone is unlocked. When you travel to a certain country, you can buy a local SIM card, pop it in and use it as normal.
In some countries, buying local SIM is as easy as stoping by a mom and pop store. Some will be harder.
Tmobile will unlock your phone as long as you ask. ATT have major restriction.
ALL ATT and Tmobile smartphones are compatible worldwide. Even 3G as everyone else uses 2100mhz.
T-mobile has a very generous international plan where for $10 a month, you can use your regular minutes. Of course it has to be within a list of countries.
T-mobile coverage is very spotty but much cheaper than ATT.
Of course I like ATT selection of smartphones much better.