(UPDATE) Tigo Lao now also offers Micro Sims.
Got an iPhone 4? Ipad? If you are an M-Phone 3G customer you no longer need to cut your original sim card down to size in order to use next generation devices because M-Phone now offers micro SIMs. Just take your old SIM into the service centre on Saylom Road, hand over your old SIMcard and receive a shiny new micro SIM in return!
Here is a Lao Telecom YouTube clip of the SIM in action!