In his blog, Richard Stallman writes that he had a very unpleasant experience visiting ASUS in Taiwan.
This is outrageous, considering they are using Linux and other free software programs in their products and making business from it.
Their WL500g routers are using Linux, and did not comply with the GPL. So in 2004, I used my copyright to enforce the license. I have obtained a declaration to cease and desist from ASUS Headquarters in Taiwan, and they modified their product promptly to bring it into GPL compliance. See this news item on the netfilter.org project homepage.
Even today, ASUS seems to be using Free Software in a number of their latest devices, as I indicated in this blog entry.