A WebmasterWorld thread reports UK Yahoo! Search Marketing advertisers receiving notification that the minimum bids accepted will be lowered to 5P (£0.05). Not all keywords will receive the lower bid of 5P, some will remain at 10P (£0.10). Which ones exactly, I am not sure.
I believe this also applies to Germany, Austria, Switzerland.
The new bid prices go into affect January 19, 2007.
Forum discussion at WebmasterWorld.

Comments:
Gabs
01/17/2007 01:40 pm
5p is still to high :( Why not 1p .. or 2p like google?
John
01/17/2007 01:45 pm
As posted in your own forums back in Nov. http://forums.seroundtable.com/showthread.php?t=1377
Bart
01/17/2007 01:55 pm
In the Netherlands it will be lowered to 5 eurocents, starting on this Friday.
Barry Schwartz
01/17/2007 01:58 pm
Yes, we reported this back then also http://www.seroundtable.com/archives/003960.html Now it is official.
Matthias Weth
01/17/2007 02:46 pm
Hi, same will happen in Germany on Saturday - 5 Euro Cent. Not all keywords will receive the lower bid of 5 Cent, some will remain at 10 Cent.