If you visit Google Turkey today at google.com.tr you will see a special doodle / logo for their Republic Day. The only issue is it appears to be the wrong flag!
Here is a picture of the special Turkey Republic Day logo from Google:
Now here is the Turkey Flag:
Notice the red background with white inside, versus what Google has as a white background with red inside.
It appears that the reverse is the flag for Northern Cyprus. Here is their flag:
There was one complaint, that I've seen, at the Google Web Search Help forum where the poster said:
Doodle for Turkey today (29.10.2010) is at wrong colors. The flag you put on doodle is Northern Cyprus's flag.
Don't you love it when Google messes up? I am just kidding - they are allowed.