So far the Swiss Army people haven’t figured out how to put this feature into one of their knives. The Mitsubishi D702iF cellphone designed for NTT DoCoMo is a pretty average clamshell phone, but it does include one unique feature – a menstrual cycle monitor.

The phone will keep track of lady’s biological rhythm (or menstrual cycle) to help her get pregnant by informing of the optimal conception time. Screw the phone, just have sex non-stop. That method always works!