On the ground: South Korea going with HSDPA
It seems South Korea is going to HSDPA which is a surprising move since HSDPA is seen as a GSM successor, while South Korea is mainly using CDMA. This could be a simple one time business decision, or it could be signs that GSM is gaining ground.
HSDPA is the technology that comes after UMTS. As I've talked about yesterday, the goal of these technologies is to provide more bandwidth. The problem is they require a brand new network, which cost millions. As these technologies get deployed world wide, there's intense lobbying going on, and a major market like South Korea is an important grab.