Setting up the Acer Aspire One (running Linpus) to use the Huawei E220 3G modem is actually surprisingly easy.
First, make sure you’ve updated your System. Then run the Mobile Partner application.
For Vodafone customers, the APN details are here:
http://forum.vodafone.co.uk/index.php?showtopic=11508
Full details on the Acer Aspire One and the Huawei E220 3G Modem can be found here:
http://johnblackmore.com/aspire-one/one-finally-supports-huawei-modems/