1. Millicomputing refers to using very small, low-power computers called millicomputers that can fit in your pocket. Examples include the Gumstix and devices using ARM processors. 2. Millicomputers are becoming more powerful yet efficient, with multicore processors, more memory and storage, and faster networking. Devices like phones and tablets now rival laptops in capability. 3. Open hardware and software allow for customization and innovation, with fully open specifications, schematics, and designs shared freely. This supports continued improvements and new applications for pocket-sized computers.