Why are there so many different types of S2s? I heard Skyrocket is the latest? Is that available here under the Samsung Malaysia Warranty?

Hello! So after some contemplation and a look at my budget, I got a White Galaxy S2! Bought a nice Anymode case for it and an extended battery. Haven't installed the extended battery yet (does it mean the phone will be bulkier?) and got a 16gb card! Yeay!

My extended battery (2000mah) comes with a new cover and it doesn't fit with my external casing. So sad. I will have to use the standard 1650 mah battery for now, I guess. Do I need a protector or not. I like the externded battery cover ... it's got more grip also another problem. my phone is white but it looks nice with a black cover.