Cortana, the most personal digital assistant, and Danny MacAskill, world-renowned trials cyclist, have successfully completed one of the world's largest loop-the-loop challenges ever cycled...and...
History of the PDA
Personal Digital Assistant PDA
Personal digital assistant
EEVblog #334 - History of PDA's in Teardowns
Danny MacAskill & #Cortana #MakeItHappen – The Loop