That pocket in the crotch of women's underwear actually has a name: the gusset. Gussets are super important and were designed to protect your lady parts, which we all can agree is a good thing. Women's underwear is often made of synthetic materials like lace.
Pocket PC is a a hardware specification from Microsoft for a small, handheld computing device that uses the Microsoft's Windows Mobile operating system. Microsoft refers to the pocket PC that runs the Microsoft Windows Mobile Classic operating system as a Windows Mobile Classic device.