HP has announced a slew of new WebOS-based smartphones and tablets, all poised to compete with the iPhone 4, the iPad, and the many Android devices on the market. Sadly, these new products are missing an important part of their legacy: the Palm name. Before the HP Pre 3 and the TouchPad, there was the Palm Treo and the PalmPilot. Before WebOS, there was PalmOS. And before HP phased out the name, there was Palm, Inc.The company that virtually invented the personal digital assistant, or PDA—the device from which the modern tablet device evolved,—has a long and storied history. Click on the slideshow and take a photo tour of the last 15 years of handheld computing, from the PalmPilot to the Pre 3.