wifi-stick? do you mean GSM stick?
I have only tested a Huawei K3520 and works great. You can find it for ~$20
Here the list of supported devices: http://wammu.eu/phones
You just need to know the type of connection supported by your device and that's all.
I have only tested a Huawei K3520 and works great. You can find it for ~$20
Here the list of supported devices: http://wammu.eu/phones
You just need to know the type of connection supported by your device and that's all.