"When Shuttleworth originally suggested that the delay take
place, the reasons given were to increase stability and reliability
of Dapper, as well as devoting additional developer time to UI
polish, to try to make Dapper stand out as a high-quality desktop
operating system for large-scale deployment. While there was some
grumbling of the 'But-we-could-be-ready-in-time' type from
developers, it seemed that most people felt the stated goals were
laudable, and the delay brief enough.
"But, obviously, there was more to it than just making sure
quality was up to snuff. While Ubuntu has versions for Intel, Mac
and 64-bit architecture, could it have been that the delay was to
prepare Ubuntu for another platform...?"