Danny Sullivan and an other member at SearchEngineWatch Forums reported that they are noticing a new and cleaner layout for MSN Search and Yahoo Search.
In this thread started by Danny Sullivan named MSN Search Unveils Cleaner Look, he says "Just noticed that MSN seems to have taken the cleaner look it promised to rollout on July 1 and made it available on the regular site, http://search.msn.com/."
And, in this thread started by strategicrankings named Yahoo! new result layout, he says "Noticed that this morning. The header is more discrete (no of SERP, time to search etc)."
I personally do not see these layout changes, but its for sure possible.