Around 1998 I thought it would be cool to snap my
Qualcomm Thinphone and Palm Pilot together to create what we now call a Smart Phone. Created the short concept video to raise some internal $ to have a prototype built. The QCP Thinphone and Palm Pilot connected through a COM port, which allowed the Palm Pilot to treat the cellular IS-95 data connection like a 14.4kbps modem. Estimated cost of the Data Dock accessory was less than $100.
A couple years after prototyping this concept, Qualcomm released the
pDQ, which combined a CDMA modem with Palm Pilot hardware, running Palm OS 3.0 I believe.