Earlier this year, Microsoft began pushing an idea it called Origami, a set of specifications for small tablet PCs that would fill a niche between notebook PCs and PDAs. As the products began appearing on the market, they became known as ultra-mobile PCs, or UMPCs. One of the first available products that adheres to that specification is the Samsung Q1 UMPC, a nicely-designed tablet with a 7-inch LCD display. I tested the Q1 with a variety of video clips, WiFi, Web browsing, and various word processing functions and was sometimes delighted. But more often than not, I was frustrated.