I don't know if you read the news about ZTE and Huawai. They are under pressure by European, US and India. Allegations include price dumping, strong connections to Chinese government and also backdoors included in their products for network monitoring (aka hardware based spyware).
This is a big concern for everyone, not just me. I would like to have the choice to buy a non-ZTE (Huawai) stick if I feel not comfortable with it. It's the same if I don't like iPhone I can buy an android. But with internet USB sticks, you don't get a choice. It's all ZTE and Huawai hardware, not a single Sony Ericsson. I phoned Sony and they say they don't offer USB internet sticks.
Frankly, this really sucks....