Contrary to Microsoft's UMPC platform the Intel Mobile Internet Device (MID) is based on Linux and targeted at consumers and prosumers:
Unlike UMPCs which target mobile professionals, MIDs will target "consumers and prosumers" and feature a range of screen sizes from 4.5 to 6-inches with resolutions from 800 x 480 to 1024 x 600. Yup, these are the same devices we spotted under the in-house name of McCaslin sporting Intel's codenamed "Stealey" class of dual-core, battery-friendly processors.
Intel's reference designs run a tweaked, 500MB version of China's RedFlag MIDINUX which boots in about 18 seconds (less than 5 seconds from standby) to a mix of open-source and proprietary code including Google Maps and web-based office and enterprise applications. Data access will be provided via HSDPA and WiFi