Added:
SierraWireless 875U unlock (6 credits for dongle users), voice enable

SierraWireless built in notebook (Asus,HP, Lenovo, Dialogue Flybook notebooks)
MC8775 unlock (6 credits for dongle users), voice enable
MC8775V unlock (6 credits for dongle users), voice enable

Dell 5510 express card unlock.(free unlimited for dongle users)

Dell built in notebook
Novatel Expedite EU870D built in notebook unlock (free unlimited for dongle users)