Just got Skype running on my aa1 running Linpus Linux. There are a few blog posts out there with instructions, but I found an official download from Acer which is a lot more straight forward and worked for me where other methods didn't.
Just follow the instructions at: http://www.acer.com/aspireone/support/files/connect.html#002
There are also instructions too on how to install support for 3G USB sticks (Huawei 3G dongles) which I haven't tried out , buy let me know if it works for you: http://www.acer.com/aspireone/support/files/connect.html#003
