Apple, Google, and others have patented concepts around this. No clue whether they're working on them... http://www.slashgear.com/google-patents-rear-touch-con

Apple, 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-6-years-after-apple-09273179/ http://www.slashgear.com/google-patents-rear-touch-controls-... http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070103454%22.PGNR.&OS=DN/20070103454&RS=DN/20070103454 http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=...