Nov 2009 update:

Countries I have lived in (Malaysia excluded):
1. USA - 7.5 years

Countries I have visited and stayed for at least 1 week continuously (# of visits):
2. UK (>20, lost count)
3. Czech Republic (7)
4. Turkey (2)
5. France (6)
6. Hong Kong (7)
7. Indonesia (4)
8. Austria (8)
9. Australia (1)
10. New Zealand (1)

Other countries I have visited:
11. Canada (1)
12. Mexico (1)
13. Belgium (1)
14. Netherlands (5)
15. Germany (5)
16. Switzerland (3)
17. Liechtenstein (1)
18. Slovakia (4)
19. Slovenia (1)
20. Hungary (1)
21. Croatia (1)
22. Bosnia-Herzegovina (1)
23. Italy (2)
24. Vatican City (1)
25. Japan (1)
26. China (2)
27. Taiwan (1)
28. Thailand (>10, lost count)
29. Brunei (1)
30. Singapore (>20, lost count)
31. Macau (2)
32. Vietnam (2)
33. Poland (1)
34. Cambodia (1)

Past 12 months: Thailand, Cambodia, Vietnam, Singapore, Hong Kong, Macau, China, UK, France, Austria, Switzerland
Next 12 months (expected/planned): Singapore, Hong Kong, China, Mongolia, Russia, UK, Thailand