  A new model of localized highly frustrated ferromagnetism is presented:
kagome spin ice. By use of analytical and Monte Carlo calculations its massive
groundstate entropy is evaluated. Monte Carlo calculations are also used to
explore the phases in the presence of further-neighbor interactions and applied
fields. The importance of thermal spin fluctuations and their ability to
stabilize a variety of magnetic structures is clearly manifested. Remarkably,
some of these phases are only partially ordered and present both disordered and
ordered sublattices.
