The ‘Race Against Time’ to Save Music Legends’ Decaying Tapes Like this:Like Loading... Post navigation Which movie made you sit in silence after the credits rolled ?TIL Microsoft invested two years and about US$1 billion developing the Kin, a line of mobile phones that was briefly sold in 2010. After only 48 days on the market, Microsoft discontinued the Kin line in June 2010 due to poor sales, They blamed Verizon for not promoting the phones actively enough.