"As Kontact is the Kolab client on the KDE platform how did Kontact happen? Which parties were involved and were there any sponsors involved?
"Cornelius Schumacher: Kontact actually has a long history. It started as an experiment in 2000 under the name Twister, was reintroduced in 2002 as Kaplan and finally started to become what it is today in 2003. Maybe the biggest single step to make Kontact happen was Don Sanders porting KMail to provide a KPart for integration in Kontact..."