in 64-bit :: 
Gossip time is (almost) over.
Gossip time is (almost) over.
During the last few weeks, Embarcadero has started feeding us with information on the to-be-released Delphi compiler for x64 systems.
If histroy can be predicted then 64-bit compiler should see the light of the day during 2011 - therefore you do not have toooo much time to prepare for compiling for x64 systems.
Read the full article to Find Out How To Prepare For Delphi x64
Related:
One thing you forgot to mention: Any routines written in x86 assembly will no longer be valid and will either have to be rewritten in x64 or Pascal equivalents.