Abstract: A portable tripod support beneath a portable notebook computer for a seated computer user. The support comprises a platform with spider-like foldable support arms having relatively folded parallel and unfolded flat coplanar positions. Fasteners on the ends of the unfolded arms are releasably secured to the computer near its corners. The platform is releasably connected to a head of an adjustable-height folding tripod with the platform plane tipped toward the user for optimum access to the computer's keyboard. One tripod leg is pointed toward the user to minimize interference between the tripod legs and the users feet when the support is positioned in front of a user seated as an aircraft passenger. Each tripod leg has an upper main leg member and at least another telescoping member for leg length adjustment.