Nokia had a tablet ready in 2001, this is what it looked like(translate.google.com)

http://translate.google.com/translate?sl=fi&tl=en&u=http%3A//www.digitoday.fi/vimpaimet/2014/04/15/nokialla-oli-valmis-tabletti-13-vuotta-sitten--talta-se-naytti/20145333/66