I bet apply has a solution

Hi all 
For the data below, I would like to return a logical value indicating
differences in the data.

#Create data
Data..<-data.frame(a=rep(1,10),b=c(rep(1,9),2),c=c(rep(1,8),2,2))

   a b c
1  1 1 1
2  1 1 1
3  1 1 1
4  1 1 1
5  1 1 1
6  1 1 1
7  1 1 1
8  1 1 1
9  1 1 2
10 1 2 2


So what I want is to return logical value telling me if all the values 

the same.  So the result would be a b c DidChange
1  1 1 1     FALSE
2  1 1 1     FALSE
3  1 1 1     FALSE
4  1 1 1     FALSE
5  1 1 1     FALSE
6  1 1 1     FALSE
7  1 1 1     FALSE
8  1 1 1     FALSE
9  1 1 2      TRUE
10 1 2 2      TRUE

I bet apply could handle this elegantly but that family of functions is
still not 100% intuitive to me.  Thoughts.  Thanks everyone

Cheers, 
 Josh


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