MoDT is a relatively new concept, derived from the term “Mobile on DeskTop.” What it basically offers is a platform for low TDP CPUs to work on desktop form-factor motherboards. The truth is that MoDT probably existed long before the term was officially coined. Remember the days when Socket A held anything with 462 pins, and 478 Northwood P4Ms sat in 478 Foxconn sockets as nicely as a desktop Prescott monster? Not to forget there was the Turion 64s that made its way to 754 K8 boards with one heatspreader less than it’s elder brothers.
More advanced MoDT designs on the other hand, will totally sport mobile or laptop components, like mobile Northbridge and Southbridge chipsets and low quiescent and load current devices. The aim is to provide the user with a cool runnning PC that burns less fuel and computes more per watt. If you look a little deeper, these systems make perfect home Theatre PCs, being small enough to fit into AV width racks and thin enough to put 1U server modules to shame.
Low power, low heat, low noise and the associated benefits automatically puts MoDT systems in the league of Viiv systems too. In case you are a little perplexed about what Viiv is, it’s another one of Intel’s initiatives for keeping you wired in the house. You can read up about Viiv over here and here.