Earlier this week, Asustek was accused of violating the GPL. The issue in particular was that they didn't include source code for some modifications they made, in particular modifications to ACPI that customized it for the Eee PC.
Asustek is on the defensive, and has clarified what happened claiming it was just a mistake. They say they fully support the GPL, and they are working to make sure the source is readily available. They claim it was simply an accidental omission, and it doesn't seem all that unlikely. While it is strange to see such a simple mistake in a unit that has been so obsessed over for months, the fact that they are indeed making the source available lends credence to their claim of just an honest mistake.