In 2009, Nokia reentered the personal computing market. Its product, the Nokia Booklet 3G was a Windows-based netbook. The company also entered the smartphone market. The Series 40 was a phone platform used in feature phones, mainly running Java-based applications. New inventions of 2008 include: smog-earing cement, high altitude flying windmills, bionic contacts, pig-urine plastic . This year a new weapon against smog was introduced in the United States: cement. Called TX Active, it was developed by the Italian company Italcementi .