Grumpy Old Geeks Products O-Phone Product O-Phone 2 mentions in 1 episode The O-Phone is described as a crowdfunded scent-based mobile messaging platform. Mentions 64: Grumpy Old Geeks 3.0! Sorta... Jun 27, 2014 1:16:30 The O-Phone. Harvard scientists are creating the first scent-based mobile messaging platform. 1:17:23 They're asking for $150,000 to maybe make it smaller.