Just when it looked like netbooks couldn't get any cheaper, Spanish company iUnika announced four new netbooks, starting at 130 Euros (roughly $180). iUnika's systems weigh in at just 700 grams (1.5 pounds), rivaled only by the Sony Lifestyle PC.

The models were presented today in Madrid at the LibreMeeting, an international conference sponsored by the Free Knowledge Foundation and focused on free software. The netbooks run on a Linux operating system, so they have access to more than 5,000 free apps.

Though we're still waiting for more information on the different models, iUnika did highlight the iUnika Solar, a 160-Euro ($220-dollar) system charged on solar power, naturally. No information is out yet on availability.