Samsung has denied via Twitter that the Samsung Galaxy S II has been delayed.
[Notice 1/2] Samsung GALAXY S II will be first released in April, as planned.
A second tweet goes on to suggest that some may be waiting longer than others:
[Notice 2/2] It will be gradually rolled out in each market according to the local launch timetable.
There are no specific details as to when the Samsung Galaxy S II will hit North America and whether it will do so with a 1.2GHz (as rumoured) or 1GHz dual-core processor (as announced at MWC).