henryli·12 ปีที่แล้ว·discussApple, Google, and others have patented concepts around this. No clue whether they're working on them...http://www.slashgear.com/google-patents-rear-touch-controls-...http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=...
http://www.slashgear.com/google-patents-rear-touch-controls-...
http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=...