Past electron-cloud (e-cloud) observations, studies and mitigation techniques
are quickly reviewed along with some ongoing code developments, the preceding
ECLOUD workshops, recent contacts with the spacecraft community, the important
role of Francesco Ruggiero, and a few current electron-cloud topics discussed
at ECLOUD12 in La Biodola.Comment: 9 pages, contribution to the Joint INFN-CERN-EuCARD-AccNet Workshop
on Electron-Cloud Effects: ECLOUD'12; 5-9 Jun 2012, La Biodola, Isola d'Elba,
Ital